Mine dump leaching water treatment method

A mine dump leaching water treatment method comprises the following steps: S1, pH regulation and chemical coagulation: pumping mine dump leaching water into a pH regulation tank, adding an alkaline chemical agent and stirring, and adding a coagulant at an outlet of the pH regulation tank; S2, rapid sedimentation: allowing the treated leaching water to automatically flow into a rapid sedimentation tank, adding a flocculating agent, polyferric sulfate and tailing sand, and stirring; S3, mud-water separation: automatically flowing into a mud-water separation tank, arranging a filter cotton ball filter bed in the mud-water separation tank for mud-water separation, discharging separated water, guiding sludge and tailing sand into an efficient rotational flow purifier to separate the sludge from the tailing sand, and enabling the tailing sand to flow back to the rapid sedimentation tank for recycling, and subjecting the sludge to dehydration by dehydration equipment and then resourceful treatment. The method is con