Self-dredging type mud pumping device and application thereof in oil well exploitation

The invention relates to the related technical field of fluid pumping equipment, in particular to a self-dredging type mud pumping device and application thereof in oil well exploitation, the self-dredging type mud pumping device comprises a pump body and a tank body which is fixedly installed on a plurality of supporting legs and connected with the inlet end of the pump body, and further comprises a round through opening, a first through hole and a second through hole, a plurality of filtering mechanisms are arranged at the upper part of the tank body along the circumference at equal intervals, and a plurality of groups of filtering mechanisms are arranged in the tank body along the circumference at equal intervals and correspond to the circular through holes; and the deflection mechanism is arranged on the tank body, is matched with the filtering mechanism and is connected with a material guiding mechanism which is arranged above the tank body, and finally, the filtering mechanism can filter foreign matters