Negative pressure dust removal device of powder stirring barrel

The utility model relates to a negative pressure dust removal device of a powder stirring barrel, and belongs to the field of negative pressure dust removal. The device comprises a negative pressure air draft mechanism arranged above a stirring charging barrel, the negative pressure air draft mechanism comprises a negative pressure main pipe communicated with a negative pressure pump, a plurality of negative pressure branch pipes communicated with the negative pressure main pipe and dust hoods fixed to the ends, away from the negative pressure main pipe, of the negative pressure branch pipes, and the dust hoods are located above a feeding port of the stirring charging barrel. The raw material adding device has the effects that the possibility that powder is raised to enter surrounding air in the raw material adding process is reduced, pollution of the scattered powder to the surrounding air is reduced, and meanwhile harm to operators is reduced. 本申请涉及一种粉料搅拌料筒的负压除尘装置，属于负压除尘领域。其包括设置于搅拌料筒上方的负压抽风机构，所述负压抽风机构包括与负压泵