Handheld spectrograph gun

The utility model relates to the technical field of spectrometers, in particular to a handheld spectrometer gun which can meet the use requirements of multiple application scenes and comprises a gun body, a gun handle is installed at the bottom of the gun body, the gun body is communicated with the interior of the gun handle, and an optical fiber cable connector and an air source connector are arranged at the bottom of the gun handle. The gas source connector is connected with a control valve in the gun body, a gun head is arranged at the front end of the gun body and comprises an excitation base and a light path transmission base, the excitation base is provided with an excitation cavity and an excitation hole, an excitation head, a lens and an excitation base gas outlet are arranged in the excitation cavity, the lens is connected with the light path transmission base, and the light path transmission base is connected with the excitation head. And the optical path transmission seat is connected with the opti