Automatic dust removal bulk machine for powder

The invention relates to an automatic powder dedusting bulk machine which comprises a guardrail frame and a dustproof shield installed in the guardrail frame, a hoisting mechanism is installed on the top face of the guardrail frame, a discharging mechanism is installed at the bottom end of the dustproof shield, and the hoisting mechanism is connected with the discharging mechanism and drives the discharging mechanism to vertically ascend and descend so as to drive the dustproof shield to stretch out and draw back. The inner dust filtering cloth bag and the outer dust filtering cloth bag which are spliced layer by layer are matched to form a double-layer protective cover structure, so that dust generated in the material filling process can be subjected to double-stage filtering, the dustproof effect is effectively improved, and the dustproof effect is improved. Meanwhile, the wear-resistant layer made of polyethylene fiber and the protective layer made of nylon are matched to serve as a double-layer structure