Device for monitoring flue gas temperature at exit of boiler furnace

The utility model provides a device for monitoring the flue gas temperature at the exit of a boiler furnace. The device comprises a display unit and four temperature measuring units connected thereto separately. The four temperature measuring units are arranged on a front wall, a back wall, a left wall and a right wall of the exit of the boiler furnace respectively, and are used for measuring the flue gas temperature value of the exit at each position. The display unit is used to display the flue gas temperature value obtained by each temperature measuring unit in real time. The device facilitates accurate adjustment of burning status inside a boiler by a worker in time.