Emergency exhaust pipeline sealing device for hatching room

The invention discloses an emergency exhaust pipeline sealing device for a hatching room. The emergency exhaust pipeline sealing device comprises a sealing box and an exhaust pipeline with the two sides penetrating through and extending into an inner cavity of the sealing box, a lifting frame is fixedly connected to one side of the sealing box, the surface of the lifting frame abuts against the bottom of the exhaust pipeline, and a sealing structure is arranged in the inner cavity of the sealing box. The invention relates to the technical field of hatching rooms. According to the emergency exhaust pipeline sealing device for the hatching room, through an arranged square pipeline section sealing structure, when power is cut off, a sealing plate moves downwards under the action of gravity, a sealing gasket is driven to be inserted into a notch groove in the square pipeline section, the exhaust pipelines at the two ends are separated, and the sealing structure is formed; and during a power failure, the pipeline