Discharging device of chemical additive production reaction kettle

The utility model discloses a discharging device of a reaction kettle for chemical additive production. The device comprises a receiving box and a vacuum pump, a lower discharging pipe is connected tothe position, close to one corner, of the top outer wall of the collecting box through a flange. A perspective mechanism is arranged on the side outer wall of the lower discharge pipe close to the top end; a butt joint mechanism is welded to the top end of the lower discharging pipe. An upper discharging pipe is welded to the top of the butt joint mechanism. A valve is arranged in the upper discharging pipe, the outer wall of one side of the collecting box is connected with a discharging pipe through a flange, the side, away from the lower discharging pipe, of the outer wall of the top of thecollecting box is connected with an exhaust pipe through a flange, an air inlet connector of the vacuum pump is in threaded connection with the exhaust pipe, and an air outlet connector of the vacuumpump is in threaded connec