Novel full-automatic milk pasteurization machine

The novel full-automatic cow milk pasteurization machine comprises a sterilization tank, the sterilization tank is detachably connected with a cold water device and a hot water tank, the sterilization tank comprises a tank body and a tank cover, the tank body is detachably connected with the tank cover in a sealed mode, the tank body comprises an outer container and an inner container, and the outer container and the inner container are connected together in a sleeved mode. A stirrer is arranged in the sterilization tank, penetrates through the tank cover and extends into the inner container; a refrigeration compressor is arranged in the cold water device and fixedly connected with the cold water device. The sterilization tank is directly connected with the cold water device, and the independent refrigeration compressor in the cold water device is used for refrigeration, so that the temperature of cold water can be quickly reduced and maintained in a required low temperature range, and the sterilization tank