Light beam guiding device and optical measurement equipment

The utility model discloses a light beam guiding device and optical measuring equipment, the light beam guiding device comprises a housing, an optical assembly and an inflation head, the housing defines an accommodating cavity, and the side wall of the housing is provided with a light outlet hole; the optical assembly comprises a first optical module and a second optical module, the first optical module is arranged in the shell and at least partially located in the containing cavity, the second optical module is arranged in the containing cavity, the first optical module is used for receiving the light beam and transmitting the light beam to the second optical module, and the second optical module is used for transmitting the light beam out of the light outlet hole; the inflation head is arranged on the shell and communicated with the containing cavity, and the inflation head is used for filling inert gas into the containing cavity. When the optical assembly is used, the inflation head inflates inert gas into