Linear electric rock drill

The utility model relates to the field of rock drills, in particular to a linear electric rock drill. The linear electric rock drill comprises a shell, a machine winding, a reciprocating motion body, a supporting device, a drill rod rotating mechanism, a drill rod and a circuit commutator, wherein the machine winding is arranged in the shell, the reciprocating motion body is arranged on the inner side of the machine winding, the front end of the reciprocating motion body is movably connected with the shell, the rear end of the reciprocating motion body penetrates through the supporting device, and the supporting device is fixed in the shell. One end of the circuit commutator is connected with a power source, the other end of the circuit commutator is connected with the machine winding, the drill rod rotating mechanism is fixed at the front end of the shell, and one end of the drill rod penetrates through the shell and is fixed on the drill rod rotating mechanism. The linear electric rock drill reduces the vibration amplitude during working, is convenient to operate, reduces the working hazard and greatly reduces the weight of the machine body comparing with the traditional electric rock drill.