Sewage treatment tank convenient for cleaning filter residues

The utility model provides a sewage treatment tank convenient for cleaning filter residues. Box body, partition plates are arranged in the box body to divide the box body into a filtering box, a flocculation box and a sediment refiltering box. Two filtering plates which are oppositely arranged are arranged in the filtering box; a water inlet cavity is formed in the upper end of the filtering box and is communicated with a space between the two filtering plates; a water inlet pipe is connected to the water inlet cavity, a residue filtering cavity is formed in the lower end of the filtering box,a residue discharging pipe is connected to the residue filtering cavity, a water pump A is arranged at the upper end of the flocculation box, and a water pumping pipe A is connected to the input endof the water pump A and stretches into the filtering box. The utility model provides a sewage treatment tank convenient for cleaning filter residues. The sewage filtering device is simple in structureand convenient to use, the