The utility model discloses a
wireless temperature measuring device suitable for a high-temperature area of a multi-
metal smelting rotary kiln, which comprises a
thermocouple, a
thermocouple protection sleeve arranged outside the
thermocouple, an outer protection shell arranged outside the thermocouple protection sleeve, and a fire-resistant filler layer arranged between the outer protection shell and the thermocouple protection sleeve. The thermocouple protection sleeve is fixedly installed on a
rotary kiln outer shell, the outer protection shell is fixedly installed on a
rotary kiln lining, the inner side end of the thermocouple protection sleeve is inserted into the inner side of the rotary
kiln lining, the
wireless temperature
transmitter is detachably installed at the outer end of the thermocouple protection sleeve, and the
wireless transmitting module is arranged on the wireless temperature
transmitter. And the wireless temperature
transmitter is matched with the wireless transmitting module and the
wireless gateway to transmit the temperature detected by the thermocouple. The wireless temperature measuring device is provided with the corresponding outer protective shell and can effectively isolate or reduce heat
radiation.