Self-closing upper exhaust device and vehicle

The utility model relates to the technical field of engineering vehicles, and discloses a self-closing upper air exhaust device and a vehicle, which comprise an air exhaust channel, a top cover and alimiting structure. The air exhaust channel is connected with a draught fan, and an air outlet of the air exhaust channel faces upwards. The top cover is matched with the air outlet; the top cover isopened under the action of airflow of the exhaust channel, and the air outlet is closed when the airflow of the exhaust channel disappears; an elastic buffer piece is arranged on the end face, opposite to the top cover, of the air outlet. When the equipment works, exhausted gas is conveyed to the top and exhausted, and the situation that objects or pedestrians on the two sides are affected due tothe fact that the exhausted gas is exhausted to the two sides is avoided. The cover can be automatically opened when the equipment works, the cover can be automatically closed when the equipment stopsrunning, rainwater or dust