Negative-pressure dust removal and recovery device for bagging flour

The utility model relates to the technical field of flour bagging equipment, in particular to a flour bagging negative pressure dust removal recovery device which comprises an umbrella-shaped shell installed at a discharge port of a flour racking machine, the umbrella-shaped shell is provided with a cavity, a flour suction hole is formed in the bottom face of the umbrella-shaped shell, a first suction port is formed in the top face of the umbrella-shaped shell, and a second suction port is formed in the top face of the umbrella-shaped shell. The first suction port is connected with a negative pressure recovery mechanism, a discharging action module of the flour racking machine is electrically connected with the negative pressure recovery mechanism, when the discharging action module releases flour, the negative pressure recovery mechanism enables the first suction port to be in a negative pressure air suction state, and when the discharging action module stops releasing the flour, the negative pressure recove