Multifunctional high-temperature measuring instrument and coke oven combustion chamber temperature measuring method

The invention discloses a multifunctional high-temperature measuring instrument and a coke oven combustion chamber temperature measurement method, the multifunctional high-temperature measuring instrument comprises a shell, and a laser module, an infrared thermometer and a laser ranging module which are arranged on the front end face of the shell, and the coke oven combustion chamber temperature measurement method comprises the following steps: starting the laser module to emit laser to form a mark on the oven surface; adjusting the irradiation position of the high-temperature measuring instrument, and checking whether the mark position formed by laser irradiation is aligned with the calibration position or not through naked eyes; the laser distance measurement module measures the distance value from the furnace surface to be measured by receiving laser reflected light of the laser module; when the measured distance value is not the height value of the nose bridge brick, the steps are repeated until the measu