Novel anti-explosion overpressure exhaust valve

The utility model relates to a novel anti-explosion overpressure exhaust valve device which solves the problem that in the prior art, an overpressure exhaust valve deforms due to air pressure impact. According to the technical scheme, the device comprises a vertical cylindrical shell, openings are formed in the upper end and the lower end of the shell, a pressing plate capable of moving up and down is placed in the shell, the opening in the upper portion of the shell can be sealed when the pressing plate moves to the upper end of the shell, a plurality of connecting rods are hinged to the lower end face of the pressing plate, and a baffle capable of moving up and down is placed in the position, below the pressing plate, in the shell. The baffle moves downwards to seal an opening in the lower portion of the shell, first telescopic rods with the same number as the connecting rods are hinged to the upper end face of the baffle, the other ends of the first telescopic rods correspond to and are hinged to the other