Electrostatic sorting device of copper grain machine

The utility model relates to an electrostatic sorting device of a copper particle machine, which effectively solves the problem that the dischargeable position of metal particles of an electrostatic sorting machine is small. According to the technical scheme, the device comprises a discharging groove, a conductor roller and a high-voltage electrode, the conductor roller is grounded, the conductor roller is hollow, the side wall of the conductor roller is of a net-shaped structure, meshes are smaller than the particle size of material particles, a rotary drum is installed in the conductor roller, the rotary drum and the conductor roller rotate synchronously, the rotary drum is a conductor, and the end of the rotary drum makes contact with the conductor roller all the time; the rotating drum and the conductor are eccentrically arranged, the distance between the right upper part of the rotating drum and the inner wall of the conductor roller is minimum, radial metal needles are densely distributed on the outer w