Air treatment device and air conditioner

The invention provides an air treatment device and an air conditioner. The air treatment device comprises a heat exchange system and a control system, the heat exchange system comprises a compressor, a first heat exchanger, a heat exchange device, a first throttling component, a second throttling component, a second heat exchanger and a gas-liquid separator, the control system comprises a heating device, and the heat exchange device is arranged on the heating device and provided with a first refrigerant flow path and a second refrigerant flow path. The second throttling component is arranged to be capable of being controlled to conduct throttling and turn-off. The compressor, the first heat exchanger, the first refrigerant flow path, the first throttling component, the second heat exchanger and the gas-liquid separator are connected in series to form a refrigerant loop, an inlet of the second throttling component is connected to a passage between the first refrigerant flow path and the first throttling compon