Coal chemical wastewater treatment device

The utility model relates to the technical field of wastewater treatment, in particular to a coal chemical wastewater treatment device. The coal chemical industry wastewater treatment device comprises a controller, a treatment assembly and a cleaning assembly are arranged on the rear side of the controller, the treatment assembly comprises an upper tank body, a lower tank body is arranged at the bottom of the upper tank body, and connecting sleeves are evenly welded to the outer side wall of the upper tank body and the outer side wall of the lower tank body respectively. A bolt is arranged in an inner cavity of the connecting sleeve, a nut is in threaded connection with the outer side wall of the bolt, a disinfection cavity is formed in an inner cavity of the upper tank body, a filtering cavity and a positioning groove are formed in the top of the lower tank body, and a sealing ring is arranged at the bottom of the upper tank body; the controller controls the multiple sets of electric control valves to work,