Wouldn't that make it into a V-22? Or the Pogo? (The aeroplane that knocks the whole conveyor belt question into a cocked hat...)
All propellers generate lift... they're airfoils... it's just a question of the orientation of the thrust vector to the weight vector and other force vectors.
The Wright flyer's propeller generated thrust, and was a pusher. WWI biplanes generated thrust, and were tractor props.
Hovercraft (early ones) generated thrust and used large pushers under the skirts.
Helicopters generate thrust and use very large tractors for the main rotors and sometimes tractors and sometimes pushers for the tail rotors... depending upon design.
If you want other answers why it's a bad idea... read about these two bad boys... and take a look at the horsepower outputs on their engines...
Unreal Aircraft - Beating Gravity - Convair XFY-1 Pogo
Unreal Aircraft - Beating Gravity - Lockheed XFV-1 Salmon