Anti-freezing device for fire-fighting pipeline

The utility model relates to a fire-fighting pipeline anti-freezing device, which is characterized in that a normally closed electric butterfly valve and an electric contact pressure gauge are arranged on an indoor fire-fighting pipeline of a water pump room, an air inflation pipe is further connected onto the indoor fire-fighting pipeline, the air inflation pipe is positioned between the electric contact pressure gauge and the normally closed electric butterfly valve, and a normally closed electromagnetic valve and a check valve are sequentially arranged on the air inflation pipe along the air inlet direction; a solar panel is installed on the roof of the water pump house, a power source control cabinet is installed in the water pump house, and a storage battery in the power source control cabinet supplies power through the solar panel. And the heating assembly, the normally-closed electromagnetic valve, the electric contact pressure gauge, the normally-closed electric butterfly valve and the air pump are re