Reaction tank with air leakage prevention feed opening

The utility model discloses a reaction tank with an anti-leakage feed opening, which comprises a reaction main body, and a discharge pipe is mounted on one side of the reaction main body, so that when a worker uses the reaction tank, high-pressure gas is generated on the inner side of the reaction tank due to reaction, and the gas leakage is prevented. Under the action of high-pressure gas pressure, a sealing plate can be driven to move towards one side, the sealing plate can drive a sealing ring to abut against the inner wall of one side of a discharging pipe, meanwhile, a second spring can stretch, a sliding block can slide on the inner side of a sliding groove in a guiding mode, the sealing plate is prevented from shifting in the moving process, and after reaction stirring, the sealing plate is prevented from falling off. When the device is used for chemical reaction, a pressure release valve is opened to release high-pressure gas on the inner side of the device, and a second spring drives a sealing plate