Multi-layer ore screening machine with drawing type oversize funnel

The utility model discloses a multi-layer ore screening machine with a drawing type oversize funnel. The multi-layer ore screening machine comprises a plurality of layers of grading screens and the grading oversize funnel, wherein the grading screens are arranged in an up-down stacked mode, the grading oversize funnel is detachably connected with discharging ports of the multiple layers of screens respectively, and the connecting ends of the grading oversize funnel are arranged in an up-down stacked mode. The grading screen upper funnel is arranged on the sliding rail and driven by the sliding assembly to move close to or away from the multiple layers of grading screens, so that stable separation between the grading screen upper funnel and the screens is achieved, enough operation space is provided for replacement and maintenance of the grading screen upper funnel, operation is simple and easy to achieve, and practicability is high. And the replacement and maintenance difficulty of the multi-layer ore screeni