Dustproof device of stock bin

The utility model discloses an anti-dust device of a stock bin. The dustproof device comprises a spraying mechanism, a bin door and a linkage assembly used for connecting the bin door and the spraying mechanism, the bin door is in sliding connection with the stock bin, the spraying mechanism comprises a water valve used for blocking water supply of the spraying mechanism, and the linkage assembly comprises a driving part used for starting the water valve and a reset part used for closing the water valve. The driving piece is connected with the stock bin, the driving piece can abut against the bin door and the water valve, one end of the reset piece is fixedly connected with the stock bin, and the other end of the reset piece is connected with the water valve. When the bin door slides to be opened, the bin door abuts against the driving piece so that the driving piece can drive the water valve to be opened, and the spraying mechanism sprays water to the inlet and outlet of the bin after water is supplied, so t