Automatic ventilation oil depot granary facility

The utility model discloses an automatic ventilation oil depot granary facility which comprises an exhaust pipeline and an exhaust impeller, the exhaust impeller is movably installed at an upper end opening of the exhaust pipeline, and a closed structure is movably installed at the position, close to a lower end installation opening, in the exhaust pipeline. A locking structure is fixedly installed at the position, close to the edge, of the lower surface of the closed structure, the closed structure comprises a rotating center shaft, a closed valve, a rubber sealing piece, a guide ring and a reset spring, and the closed valve is fixedly installed on the surface of the rotating center shaft. According to the automatic ventilation oil depot granary facility, an operator can conveniently operate opening and closing of the automatic ventilation facility on the ground through the unlocking rope and the installation clamping groove, so that the automatic ventilation facility can be rapidly opened when the oil depot