Mechanical derusting machine

The utility model discloses a mechanical derusting machine which comprises a shell, the shell comprises a handheld part and an outer cover, a storage battery is arranged in the handheld part, a double-shaft motor is arranged in the outer cover, and two output shafts of the double-shaft motor are in transmission connection with a longitudinal derusting mechanism and a transverse derusting mechanism respectively. The longitudinal derusting mechanism comprises a rotating shaft, bearing seats are arranged at the left and right ends of the rotating shaft, a pair of derusting wheels and a driven bevel gear are arranged on the rotating shaft, a driving bevel gear is arranged on an output shaft of the double-shaft motor, and the driving bevel gear is in meshing transmission connection with the driven bevel gear; the transverse rust removal mechanisms are symmetrically arranged relative to the output shaft of the double-shaft motor, each transverse rust removal mechanism comprises a rotating shaft, a rust removal whee