Optical gas detector

The utility model relates to the technical field of gas detection, and aims to provide an optical gas detector. The optical gas detector comprises a main control module, a first detection module, a second detection module, a wireless communication module and a data storage module, the first detection module, the second detection module, the wireless communication module and the data storage module are in communication connection with the main control module, and a first detection space corresponding to the first detection module and a second detection space corresponding to the second detection module are arranged in an isolated mode. The first detection space is used for accommodating gas to be detected; wherein the first detection module comprises a first light source emitting module and a first light ray receiving module which are respectively in communication connection with the main control module, and the second detection module comprises a second light source emitting module and a second light ray rece