could a robot fly with powerful enough electromagnets?

The robot in question is a large, worm-like mining robot built for digging tunnels. It has electromagnets positioned throughout the segments of its body, for the purpose of pulling metals out of the surrounding earth as it digs. My question is, could this robot use its electromagnets to "push off" of the earth's natural magnetic field (or even just metals in the earth's crust), and fly through the air?

It doesn't have to be prolonged flight, only for a few seconds at a time, since doing this would obviously consume a lot of power.

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could a robot fly with powerful enough electromagnets?

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