The utility model provides a factory building construction of severe cold district underground cold -proof and scattered cigarette and ventilation system. The utility model relates to a factory building construction of severe cold district underground cold -proof and scattered cigarette and ventilation system. The air door include preceding air door with the back air door, the air door setting in the tunnel, preceding air door setting at the front end in tunnel, the place ahead of preceding air door set up and to send the calorimeter, the rear of back air door be the face, back air door and face between put the dust remover, preceding air door include electric roller shutter I, electric roller shutter's I lower extreme connect light sense ware I, electric roller shutter's I bottom connect magnetic sheet I, magnetic sheet I cooperation magnetic stripe I use, magnetic stripe I fix subaerial, electric roller shutter's I the place ahead upper end connect cotton curtain I, the both ends of cotton curtain I set up locating plate I respectively. The utility model is used for the factory building construction of severe cold district underground.