Oil and gas field sewage filtering device

The utility model discloses an oil and gas field sewage filtering device which comprises a main body and a cleaning mechanism, the cleaning mechanism is arranged at the bottom of the main body and comprises a connecting pipe, the connecting pipe is installed at the bottom of the main body in a matched mode, and a first motor is installed on the back face of the connecting pipe in a matched mode. The output end of the first motor is fixedly connected with a first rotating shaft through a coupler, and the other end of the first rotating shaft is movably connected with a belt transmission assembly. According to the oil and gas field sewage filtering device, through the arrangement of the cleaning mechanism, the effect of cleaning the surface of the filter screen can be achieved; a first motor drives a belt transmission assembly and a two-way screw rod to rotate through a first rotating shaft, so that a ball nut and a cleaning brush move repeatedly at the bottom of a filter screen, the effect of cleaning the filt