Wet tissue capable of heating automatically during use

The utility model discloses a wet tissue capable of heating automatically in use, which comprises a wet tissue body and an automatic heating device arranged in the wet tissue body, the top layer and the bottom layer of the wet tissue body are both non-woven fabric layers, a reaction raw material filling layer is arranged in the automatic heating device, and the reaction raw material filling layer is arranged in the wet tissue body. A protective diaphragm layer is arranged on the outer surface of the reaction raw material filling layer, ventilation air channels are formed in the two ends of the automatic heating device, connecting air ports are formed in the ventilation air channels, movable sealing openings are formed in the connecting air ports, and air bags communicated with the connecting air ports are arranged on the wet tissue body. According to the automatic heating device, air can be conveniently stored through the arranged air bag structure, the ventilation air channel is arranged in a vacuum mode and