Dust-free quantitative automatic flour packaging device

The utility model belongs to the technical field of flour processing equipment, and particularly relates to a flour dust-free quantitative automatic packing device which comprises a base plate, two supports are fixedly connected to the upper surface of the base plate, a top plate is arranged on the upper portions of the two supports, and a feeding assembly is installed in the center of the top plate. The feeding assembly comprises a feeding hopper fixedly connected to the top plate and a feeding pipe communicating with the bottom of the feeding hopper, a rotating air cylinder is installed on the portion, on one side of the feeding pipe, of the support, and an output shaft of the rotating air cylinder extends to the inner side of the feeding pipe and is fixedly provided with an annular limiting plate matched with the inner wall of the feeding pipe. The rotary air cylinder is installed on the feeding pipe and can control the annular limiting plate to rotate, so that flour feeding is controlled, when flour in a