Constant-temperature blanket capable of keeping body temperature after operation

The constant-temperature blanket comprises a constant-temperature blanket body, a conveying pipe is fixedly connected in the constant-temperature blanket body, one end of the conveying pipe is fixedly connected with an air inlet pipe, and the end, away from the air inlet pipe, of the conveying pipe is fixedly connected with an air outlet pipe. When the constant-temperature blanket body needs to be cleaned, a movable ring can be pushed to move so as to enable a connecting rod to rotate, the connecting rod enables a push block to move and abut against a buckle, the push block enables the buckle to deform, and therefore the constant-temperature blanket body can be cleaned. At the moment, the connecting base can be pulled out, the air inlet pipe and the connecting pipe can be separated, the air outlet pipe and the other connecting pipe can be separated, then the constant-temperature blanket body is detached to be cleaned, the constant-temperature blanket body and the air supply assembly are convenient to install