Water, steam and heat three-purpose water heater

The invention relates to a water steam heating three-use hot-water stove, wherein, a heat exchange pipe (13) is arranged inside a water chamber (14); both ends of the heat exchange pipe (13) are extended out of a stove body (6) and respectively connected with a water inlet end and a water outlet end of a radiator (17) through water pipes; and a hot-water port (12) which is used for supplying hot water and a steam port (10) which is used for supplying steam are also arranged on the stove body (6). By utilization of the hot-water stove, three functions of water supply, cooking and heating are realized; the hot-water stove is opened and completely operated without pressure, thereby the safety performance is guaranteed. Moreover, coal burning adopts back-combustion combined with secondary combustion, thereby the thermal efficiency is high, the energy consumption rate is low and the environmental pollution is light. By adoption of the structure and the combustion mode of the invention, the weight of boiled water p