are their any 3ds emu that is compitable with andriod?
No, not right now. Citra is the only viable 3DS emulator for gaming, and no Android port is planned at this time.
But, they are working on it right?
No, we aren’t working on a Android port.
Why not working on it?
I believe the priority of the team is getting Citra to work flawlessly on the PCs. When that’s done, they can port it (in theory) easily to any platform they want.