Multistage percolation simulation test device for sewage treatment

The utility model relates to the technical field of sewage treatment, and discloses a multi-stage percolation simulation test device for sewage treatment, which comprises a support frame and a plurality of water tanks, the supporting frame is provided with a plurality of containing spaces, and the water tanks are detachably arranged in the containing spaces. The water tank comprises a water inlet tank and percolation tanks, the water inlet tank is arranged in the accommodating space at the uppermost part of the support frame, the percolation tanks are arranged in a plurality of accommodating spaces below the water inlet tank, and percolation materials are respectively arranged in the plurality of percolation tanks; a first water outlet pipe is arranged below the side wall of the water inlet tank; a second water outlet pipe is arranged at the lower part of the side wall of the percolation tank; the first water outlet pipe of the water inlet tank is communicated with the water inlet pipe of the adjacent percola