Dustproof device for agricultural machinery

The utility model discloses a dustproof device for agricultural machinery, which comprises a machine body, the upper end of the machine body penetrates through and is fixed with a feeding cylinder, the upper end of the feeding cylinder is connected with a feeding hopper, one side of the upper end of the machine body is fixed with a mounting seat, the feeding cylinder is internally provided with afeeding device, and one side of the feeding cylinder penetrates through and is fixed with a connecting pipe; a bearing plate is fixed to one side of the machine body, a fixing box is fixed to the upper end of the bearing plate, one side of the fixing box is fixed to one side of the machine body, one end of the connecting pipe penetrates through the fixing box and is fixed to the upper end of the fixing box, three openings are formed in the other side of the fixing box, and a filtering device is arranged in the fixing box. According to the utility model, dust generated during threshing can be absorbed, the absorbed dus