Fireproof flap valve capable of being automatically closed in case of power failure

The utility model discloses a fireproof flap valve capable of being automatically closed during power failure, which comprises a feeding pipe and is characterized in that the top of the feeding pipe is communicated with a discharging hopper, the upper end of the right side of the discharging hopper is fixedly connected with an electromagnet, the right side of the electromagnet is electrically connected with a power line, and the left end of the electromagnet penetrates into an inner cavity of the discharging hopper. A flap valve body is arranged on the right side of an inner cavity of the discharging hopper, the right side of the flap valve body is attached to the left side of an electromagnet in an attraction mode, and a hinge is arranged at the bottom of the flap valve body. Through the arrangement of the feeding pipe, the discharging hopper, the power line, the electromagnet, the flap valve body and the hinge, the electromagnetic principle is utilized, the flap valve body can relieve the constraint of magn