Multistage clarification equipment of heavy metal wastewater treatment system

The invention relates to the technical field of wastewater treatment, and discloses multistage clarification equipment of a heavy metal wastewater treatment system, a front cylinder, a dosing cylinder, a settling cylinder and a filter cylinder are sequentially and fixedly mounted at the top of a bottom plate from left to right, and when sewage added with a flocculating agent enters the settling cylinder, the sewage can be gathered in a first settling cavity; the sedimentation area of floccules in the sewage is increased due to the effect of the inclined sedimentation pipe, so that the purposes of accelerating sedimentation and blocking are achieved, the floccules are settled and fall at the bottom of the first sedimentation cavity to be gathered, and the principle of the second sedimentation cavity is such that the floccules are discharged into the first sedimentation cavity through the inclined sedimentation pipe. When sewage treatment is completed and settled floccules need to be discharged, a third motor i