Multi-metal waste rock recovery treatment method

The invention relates to a multi-metal waste rock recovery treatment method. The method comprises the following steps: (1) crushing multi-metal waste rock to be treated; (2) the crushed ore enters a multi-layer vibrating screen to be screened; (3) the screened ore is sorted, different sorting devices and methods are adopted for different particle fractions, and therefore concentrate and tailings are obtained; (4) ore concentrate is subjected to ore grinding operation; (5) grading the ore grinding pulp; (6) the graded overflow minerals are subjected to flotation operation, and copper concentrate, sulfur concentrate and flotation tailings are obtained through a copper-sulfur mixed flotation separation process; and (7) the flotation tailings are subjected to magnetic separation operation, and iron ore concentrate and tailings are obtained. According to the method, the valuable metal recovery treatment effect on the low-grade refractory surface ore and the low-grade miscellaneous ore is good, the recovery rate of