Prospects for the controversial Adani coal mine have dimmed further after the Queensland government said it wanted no role in any federal loan to support the project.

In a statement on Saturday, Premier Annastacia Palaszczuk said that "consistent with our election commitments, cabinet has determined that any [Northern Australia Infrastructure Facility] loan needs to be between the federal government and Adani".

The chances of building a rail link to Adani's proposed coal mine just got a little fainter. Credit:Rob Homer

If the NAIF does provide funds for the 388 kilometre, $1 billion-plus rail link to support the proposed Carmichael mine, it will do so without the support of the state government. The NAIF's guidelines say loans should "align" with a state's needs.

"If [Prime Minister] Malcolm Turnbull wants to spend his money in this way, that's his decision," a source said, requesting anonymity.