Domestic water-heating stove

The utility model relates to a domestic water-heating stove, comprising a stove body, a stove, a water tank, etc. The water tank is positioned at the upper part of the stove body and the coal stove is at the lower part of the stove body. When coal is burning, the water tank are heated directly. At least 3 endothermic pipes whose top and bottom are perforated are arranged in the water tank. After coal combustion, heat gas flow is formed, and heats the water tank once more by passing through the endothermic pipes in the water tank and then exhausts from an exhaust hood, a flue outlet and a chimney. The upper part and the lower part of the water tank are provided with water outlet pipes and water return pipes which are respectively connected with a radiator, a water storage barrel and a water discharge valve to form an atmosphere pressure hydraulic cycle heating system by pipe fittings, such as pipes, movable joints, etc and the utility model has high thermal efficiency, simple structure and is practical.