Auxiliary sealing door for powder filling of container

The utility model belongs to the technical field of container powder bulk, and particularly relates to a container powder filling auxiliary sealing door which comprises a sealing door body, the sealing door body is connected with a discharging pipe and a dust suction pipe, the discharging pipe and the dust suction pipe penetrate through the sealing door body, and a discharging port and a dust suction port which correspond to each other are located at the bottom of the sealing door body. The shape and the size of the sealing door body are matched with those of an opening of the container, the sealing door body can ascend and descend, and the sealing door body can be in butt joint with the opening in the top of the container which is overturned to be vertical after descending. The powder filling device can effectively solve the problem of dust leakage in the powder filling process. The sealing door body is matched with the opening of the container, and the discharging pipe and the dust suction pipe are connecte