Dustproof reflux unit of usefulness gathers dust at stirring station

The utility model discloses a dustproof reflux unit of usefulness gathers dust at stirring station, including two at least powder storehouses and a dust collector, be provided with the feed inlet on the bulkhead in powder storehouse, powder storehouse top is provided with the dust exhaust pipe, the dust exhaust pipe is including last dust exhaust pipe and lower dust exhaust pipe, go up the dust exhaust pipe and be provided with dustproof backward flow mechanism down between the dust exhaust pipe, dustproof backward flow mechanism includes the counter weight, the jib, the balancing pole, the gas flow is to cross box and apron, export and the import of dust exhaust pipe down that the dust exhaust pipe is connected respectively to the top and the bottom of cross box to the gas flow, the upper end fixed mounting of jib is on the gas flow is to the inside roof of cross box box, the lower extreme of jib is provided with the lifting hook, the dress is worn in the lifting hook to the balancing pole, apron and counter