The invention discloses a split warm air heat-pump water heater. The split warm air heat-pump water heater comprises a heat storage water tank and an outdoor unit, wherein the outdoor unit is connected with a condenser arranged on the heat storage water tank through a refrigerant pipeline; the condenser is used for heating the heat storage water tank; a radiator used for providing warm air is arranged beside a water tank body; a fan is arranged on one side of the radiator; the heat source of the radiator is hot water from the heat storage water tank or a high temperature refrigerant from the refrigerant pipeline. By additionally arranging the radiator and the fan, the warm air heat-pump water heater can provide the warm air for a bathroom/toilet and other environments, both the warm air and the hot water are supplied, and the using comfort of the user is improved; the radiator, the fan and the heat storage water tank are integrated, so that the split warm air heat-pump water heater is compact and reasonable in structure, convenient to mount and detach and easy to expand and can implement warm air supply in various manners according to using requirements, and the diversity and the flexibility of heating methods are improved.