Emergency leaking stoppage device of hazardous chemical tank truck

The utility model discloses an emergency leaking stoppage device for a hazardous chemical tank truck. The emergency leaking stoppage device comprises an air bag blocking system, an air curtain generation system and an intelligent monitoring system. The intelligent monitoring system can monitor whether hazardous chemical substance leakage occurs on the surface of the tank body in real time, if yes,the air curtain generation system sprays inert gas on the outer surface of the tank body where leakage occurs through the air curtain gas guide pipe, and therefore an air flow curtain is formed at the position, and the hazardous chemical substance leakage speed can be effectively reduced; the leaked hazardous chemical substances are diluted, so that the influence on the surrounding environment isreduced; meanwhile, due to mutual attraction of the magnetic materials at the ends of the two opposite air bags, the air bags in the two round pipe type supports rapidly extend in the opposite directions along the outer surfa