ADRIAN Burragubba has warned of "double trouble" for Adani's $16 billion Carmichael mine in the Galilee Basin.

The Wangan and Jagalingou traditional owner has launched another court case against the mining giant and will also set out on an international trip on Sunday urging investors and banks not to finance the "unwelcome" mine.

On Friday Mr Burragubba held a small protest outside the company's Brisbane office.

His Federal Court challenge follows the National Native Title Tribunal's April decision to allow the Queensland Government to issue mining permits for the mega coal mine.

But Mr Burragubba said it would destroy his and the Wangan and Jagalingou's traditional land.

An Adani spokesperson said they were confident the judgment of the NNTT would be upheld.

"The NNTT variously held that authorised representatives of the W&J are working with the company, the submissions of groups purporting to represent the whole group were not relevant, that the mine and other Adani projects would deliver substantial intergenerational economic benefits to the W&J, and that there are sound and effective cultural heritage management plans for the site long since in place," they said.

"First, we announce that we have filed an appeal and judicial review in the Federal Court of Australia," Mr Burragubba said.

"This disastrous mine needs billions of dollars of finance if it is to ever go ahead.

"On Sunday 31 May, we will embark a world tour to hold high-level talks with investment banks on Wall St, in European finance capitals, and in Asia."

Mr Burragubba said various donors would fund the trip, but he was unsure who they would be.

He also said he was unsure how much the trip would cost. - APN NEWSDESK