Heavy metal contaminated soil in-situ layered remediation system

The utility model relates to the technical field of soil remediation, and discloses a heavy metal contaminated soil in-situ layering remediation system which comprises a filtering tank and a dispensing tank, the filtering tank is arranged on one side of the dispensing tank, the lower end of the filtering tank is communicated with the lower end of the dispensing tank through a connecting pipe, a filling pipe is fixedly arranged on one side of the dispensing tank, and the filling pipe is communicated with the dispensing tank through a connecting pipe. A water pump is arranged at the top end of the filtering tank, a water outlet of the water pump extends into the filtering tank, a water inlet of the water pump is fixedly connected with a water pumping pipe, a rotating ring is rotationally arranged at the lower end of the water pumping pipe, a rotating pipe is fixedly arranged on the lower side of the rotating ring, and the outer wall of the lower end of the water pumping pipe is fixedly sleeved with a fixing rin