Mine safety unmanned aerial vehicle device

The utility model discloses a mine safety unmanned aerial vehicle device, and relates to the technical field of mine exploration. The unmanned aerial vehicle comprises a chassis, propellers are arranged at the four corners of the top end of the chassis, a protection assembly is arranged at the bottom end of the chassis, and the chassis and the protection assembly are connected in a clamped mode through a clamping assembly. The protection assembly comprises a mounting frame, the mounting frame covers the bottom end of the chassis, the two sides of the mounting frame are fixedly connected with symmetrically-distributed connecting rods, and the sides, away from the mounting frame, of the connecting rods are fixedly connected with elastic protection covers; through cooperation of a through groove, a clamping plate, a mounting frame, a limiting block, a telescopic rod, a spring and a clamping groove, the mounting frame is mounted at the bottom of the chassis, a propeller is protected through an elastic protective