Queensland’s deputy premier says he won’t be intimidated by Clive Palmer or his party, who are calling for multiple inquiries into his government.

Queensland’s deputy premier has shrugged off a multi-faceted attack from Clive Palmer and his party, accusing the federal MP of being motivated by revenge.

The mining magnate-turned-politician on Wednesday said one of the first actions of the Palmer United Party after July 1 would be for a motion calling for a Senate inquiry into corruption in Queensland.

Mr Palmer wants the inquiry to cover issues like the controversial appointment of the state’s new chief justice and favouritism of LNP-linked companies in the awarding of government contracts.

Meanwhile, PUP’s Queensland leader Alex Douglas wants the Crime and Misconduct Commission to investigate retrospective legislation that benefited a Liberal National Party (LNP) donor.

Karreman Quarries, which has donated $75,000 to the LNP in recent years, was facing prosecution over unlawful extraction of sand and gravel from the Brisbane River when an amendment, slipped unnoticed into a package of Water Act reforms, retrospectively legalised its activities.

Deputy Premier Jeff Seeney, who is also being sued by Mr Palmer for defamation, says he is more focused on the state’s economy than what the Fairfax MP is up to.

“The Queensland government is not at all intimidated by Mr Palmer or his party,” Mr Seeney told AAP in a statement.

“Sadly Mr Palmer is motivated by revenge and his only interest is self-interest.”

Mr Seeney has previously alleged Mr Palmer, who was previously a generous LNP donor, had tried to gain special government treatment for his business interests in the Galilee Basin, but was rebuked.

The deputy premier said the government’s amendments were to fix problems the former Labor government had created, which he had publicly objected to in opposition at the time.

“These Labor amendments changed the definition of a water course and in doing so diminished the property rights of rural landholders and businesses such as quarries who had, up until then, had legitimate rights to quarry in certain places,” Mr Seeney said.

“We have simply restored those rights as we said we would.”

Mr Seeney said the amendments were introduced in a transparent way and in line with normal parliamentary process.

Dr Douglas has described the amendments as “borderline corrupt”, while the Labor opposition has also attacked them, saying they were introduced in a misleading way.