Mining air door warning device

The utility model provides a mining air door warning device, and belongs to the technical field of mining air door warning devices. The technical problem to be solved is to provide the improvement of the hardware structure of the mining air door warning device. According to the technical scheme, the device comprises two device bodies right facing an air door, the device bodies are provided with infrared exit ports, a control circuit board is arranged in each device body, and a microcontroller, a power module, a storage module, an infrared switch detection module and an RS485 interface module are integrated on each control circuit board. A display screen is arranged on the front face of the device body, an audible and visual alarm is arranged on the device body, the microcontroller is connected with the storage module, the infrared switch detection module and the display screen through wires, and the power module is connected with the power end of the microcontroller through a wire and supplies power to the wh