A washing appliance, comprising: a tub comprising an air inlet and an air outlet; an air duct assembly comprising a first air duct, the first air duct comprising an inlet in communication with the air outlet and an outlet in communication with the air inlet; and a heat pump system comprising a compressor, a throttling device, an air-cooled condenser, and an evaporator, the evaporator being at least partially disposed in the first air duct, wherein: the air duct assembly further comprises a second air duct, the second air duct comprising an inlet in communication with the air outlet and an outlet in communication with the first air duct; and the air-cooled condenser is at least partially disposed in the first air duct and located downstream of the second air duct in a gas flow direction, characterized in that the first air duct and the second air duct are arranged in the air duct assembly such that gas flowing out of the tub can flow into the first air duct and the second air duct through the air outlet, wherein a part of the gas can flow through the evaporator in the first air duct, so that water vapor in the highly humid gas can be condensed into a liquid state to reduce the humidity of the gas to achieve drying and dehumidification of the gas that becomes dry and cold air, and wherein another part of the gas can flow directly through the second air duct and merge with the processed dry and cold air in the first air duct. a tub comprising an air inlet and an air outlet; an air duct assembly comprising a first air duct, the first air duct comprising an inlet in communication with the air outlet and an outlet in communication with the air inlet; and a heat pump system comprising a compressor, a throttling device, an air-cooled condenser, and an evaporator, the evaporator being at least partially disposed in the first air duct, wherein: the air duct assembly further comprises a second air duct, the second air duct comprising an inlet in communication with the air outlet and an outlet in communication with the first air duct; and the air-cooled condenser is at least partially disposed in the first air duct and located downstream of the second air duct in a gas flow direction, characterized in that the first air duct and the second air duct are arranged in the air duct assembly such that gas flowing out of the tub can flow into the first air duct and the second air duct through the air outlet, wherein a part of the gas can flow through the evaporator in the first air duct, so that water vapor in the highly humid gas can be condensed into a liquid state to reduce the humidity of the gas to achieve drying and dehumidification of the gas that becomes dry and cold air, and wherein another part of the gas can flow directly through the second air duct and merge with the processed dry and cold air in the first air duct. the air duct assembly further comprises a second air duct, the second air duct comprising an inlet in communication with the air outlet and an outlet in communication with the first air duct; and the air-cooled condenser is at least partially disposed in the first air duct and located downstream of the second air duct in a gas flow direction, characterized in that the first air duct and the second air duct are arranged in the air duct assembly such that gas flowing out of the tub can flow into the first air duct and the second air duct through the air outlet, wherein a part of the gas can flow through the evaporator in the first air duct, so that water vapor in the highly humid gas can be condensed into a liquid state to reduce the humidity of the gas to achieve drying and dehumidification of the gas that becomes dry and cold air, and wherein another part of the gas can flow directly through the second air duct and merge with the processed dry and cold air in the first air duct.