Fire disaster alarm buzzer on electric power site

The invention relates to the technical field of fire disaster alarm buzzers, in particular to a fire disaster alarm buzzer on an electric power site. The fire disaster alarm buzzer includes a fixed top board, a fixed cylinder is fixed to the bottom of the fixed top board, the external side of the fixed cylinder is connected with a supporting cylinder, ventilating holes are formed in the external surface of the supporting cylinder, an inner cylinder is arranged in the supporting cylinder, the internal wall of the inner cylinder is fixedly connected with a motor supporting rod, one end of the motor supporting rod is fixedly connected with a motor fixing ring, the internal wall of the motor fixing ring is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with blades; the bottom end of the supporting cylinder is fixedly connected with a fixed bottom board, the bottom of the fixed bottom board is fixedly connected with a smoke sensor and a housing, the smoke sensor is covered wi