Breathing machine pipeline heat preservation sleeve

The utility model discloses a breathing machine pipeline heat preservation sleeve, which relates to the technical field of pipeline heat preservation and is characterized in that the heat preservation sleeve is rectangular after being unfolded and comprises an outer layer, a heating layer, a waterproof layer and an inner layer which are sequentially connected from top to bottom, and a male hook-and-loop fastener is arranged on one side of the top of the heat preservation sleeve. A female Velcro is arranged on the side, opposite to the male Velcro, of the bottom of the heat preservation sleeve; an S-shaped coiled heating wire is arranged in the heating layer; a temperature regulator and a wire are arranged outside the heat preservation sleeve, the temperature regulator is connected with the heating wire through the wire, and the temperature regulator is further connected with a plug through the wire. The gas temperature of the pipeline is guaranteed, it is avoided that water vapor becomes condensate water due