Coal chemical wastewater purification device

The utility model discloses a coal chemical wastewater purification device and relates to the technical field of wastewater treatment equipment. Supporting plates are fixed to the left side and the right side of the exterior of the box body correspondingly, mounting boxes are fixed to the supporting plates correspondingly, positive and negative rotation motors are fixed to the rear side walls of the mounting boxes correspondingly, wire spools are arranged on output shafts of the positive and negative rotation motors, the front ends of center shafts of the wire spools are arranged on the frontside walls of the mounting boxes in a rotating mode correspondingly, and movable wires are wound around the wire spools correspondingly. The movable lines penetrate through the upper side wall of theinstallation box and then are attached to the supporting wheels, the supporting wheels are connected to the outer side wall of the box body in a screwed mode through the hinge seats, the other ends ofthe movable lines penetrat