First-level automatic double-flap wind blockage valve

The utility model belongs to the technical field of cement production equipment, and provides a first-level automatic double-flap wind blockage valve which comprises a tank body, an inlet end and an outlet end of the tank body and two dead-weight valve plates inside the tank body. The dead-weight valve plates are arranged on the inner wall of the tank body and close to the inlet end, an inspection door is arranged on the upper portion of the tank body, and a penetrating shaft is arranged on the inspection door to fix. The wind is locked by dead-weight of the valve plate and discharging powder lots. The first-level automatic double-flap wind blockage valve is simple in structure, energy-saving and consumption-reducing, good in using effect and convenient to repair and change.