Air scrubbing filter tank

The invention relates to the technical field of air scrubbing filter tanks, discloses an air scrubbing filter tank, and solves the problems that when an existing air scrubbing filter tank is used for backwashing a filter layer, turbidity at different positions of the filter layer is different, and the backwashing effect of a region with heavier turbidity of the filter layer is easily reduced when the filter layer is washed at the same backwashing time. And key back-flushing cleaning cannot be carried out aiming at a certain filter layer position. The tank body comprises a filtering layer, a flushing layer and a water receiving layer which are sequentially arranged from top to bottom; the fixed washing mechanism is arranged on the washing layer and comprises a plurality of first washing frames, and each washing frame is provided with a plurality of first nozzles; the dynamic flushing mechanism is arranged on the flushing layer, the flushing mechanism comprises a second flushing frame, a first power piece and a