What on earth is this thing

Found with some lenghts of pipe


Could always be part of a stamper battery…

Light gauge, thin vanes, I’d say it was a blower/general air shifter. Are there any underground workings in that area?

Not that i can see, the pipe i assumed carried water

Waterwheel then. See what lies out to the sides of it.
I love rummaging around derelict stuff in the bush.