Heavy metal ion precipitation device for landfill leachate

The utility model relates to the technical field of landfill leachate, in particular to a heavy metal ion precipitation device for landfill leachate, which comprises a precipitation tank, an interlayer tank and a movable sleeve, a water outlet pipe is fixedly mounted on one side of the precipitation tank, and a dosing port is fixedly mounted at the front end of the precipitation tank at the top of the water outlet pipe. According to the device, the interlayer box, the butt joint rod, the limiting rod and the limiting hole are matched with one another, so that landfill leachate can be conveniently guided in through the interlayer box and then filled, the limiting rod slides along the interior of the mounting frame, so that the limiting rod is in butt joint with the limiting hole, the settling box and the interlayer box can be limited and fixed, and the working efficiency is improved. And the bottom of the interlayer box is provided with the filtering holes, so that the landfill leachate flows out through the f