The invention relates to filtering equipment, in particular to multistage sewage filtering equipment, which has the advantages of multistage filtering and comprehensive filtering. The multistage sewage filtering equipment comprises a frame body, a rubber plug, a discharging tube, a first valve, a first screen plate, sand, a first sealing bearing, a mounting plate, a motor, a first revolving shaft,blades, a feed hopper and the like, wherein the lower part of the right wall of the frame body is provided with a discharging hole; the rubber plug is inserted into the discharging hole; the discharging tube is arranged on the lower part of the left wall of the frame body; the first valve is arranged on the discharging tube; the first screen plate is arranged on the lower part in the frame body;and the sand is placed into the frame body on the lower part of the first screen plate. By adopting the multistage sewage filtering equipment, the effects of multistage filtering and comprehensive filtering are achieved; the blades are driven to rotate clockwise and anticlockwise through the clockwise and anticlockwise rotation of the first revolving shaft, so that sewage and a flocculant can be mixed better; the sewage can be filtered again with a second screen plate, so that the sewage can be filtered more comprehensively.