The automatic fire door for belt conveyor roadway is an important safety facility installed in the coal mine belt conveyor roadway, consisting of a door body, a control system, and sensors. During normal production, the fire door remains normally open to ensure proper ventilation and smooth transportation. Once monitoring parameters such as carbon monoxide (CO), smoke, or temperature in the working face exceed the set limits or a fire hazard occurs, the system can automatically or remotely close the fire door quickly, effectively isolating the airflow, preventing the spread of fire and toxic/harmful gases, and buying valuable time for disaster relief and personnel evacuation during mine emergencies.