Plug-in four-point armored high-temperature thermocouple

The utility model discloses a pluggable four-point armored high-temperature thermocouple. The device comprises a junction box, a thermocouple I, a thermocouple II, a socket and a plug, the junction box is connected with the four thermocouples I; one end of each of the four thermocouples I is connected to the junction box; sockets are arranged at the other ends of the four thermocouples I; whereina plug wire pin is fixed at one end of the plug, a thermocouple II is arranged at the other end of the plug, one end, far away from the plug, of the thermocouple II is a temperature measuring end, a protective tube is sleeved at the joint of the thermocouple I and the junction box, and a plug hole matched with the plug wire pin is formed in one end, far away from the junction box, of the socket. Temperature measurement points can be flexibly selected, the average temperature of the area can be accurately measured, the joint of the thermocouple wire and the junction box is not prone to abrasionand breakage, the length