Multi-parameter sensor for coal mine

The utility model relates to sensor technologies for coal mines, in particular to a multi-parameter sensor for a coal mine. The multi-parameter sensor for the coal mine comprises a central processing unit (CPU) inside an intrinsic safety outer shell, wherein the CPU is respectively and electrically connected with a power module, a sound-light alarm circuit, a remote control receiving circuit, a data display circuit, a signal output circuit and a wind speed detection circuit. The multi-parameter sensor for the coal mine is characterized in that the CPU is further electrically connected with an SPI data bus, and the SPI data bus is respectively and electrically connected with a methane detection circuit and a temperature detection circuit, wherein the SPI data bus is further electrically connected with a carbon monoxide detection circuit. By sharing one shell body, materials are saved, and by sharing one bus, cable laying is simple and high in reliability. The multi-parameter sensor for the coal mine is low in failure rate and small in overall energy consumption, and improves reliability of a coal mine safety monitoring system by being applied to the system.