The invention discloses a household air conditioner device capable of adjusting temperature and humidity respectively. The household air conditioner device is characterized by comprising a refrigerating system and an air processing part. The refrigerating system comprises a compressor (1), a four-way valve (2), a first heat exchanger (3), a first one-way valve (4), a second one-way valve (5), a reservoir (6), a filter (7), a first electronic expansion valve (8), a third one-way valve (9), a fourth one-way valve (10), a second heat exchanger (11), a first gas-liquid separator (12), a second electronic expansion valve (13) and a third heat exchanger (14). An output end of the compressor (1) is connected with a first input end (2a) of the four-way valve. A first output end (2b) of the four-way valve is connected with an input end (3a) of the first heat exchanger. An output end (3b) is connected with an input end of the reservoir (6) through the first one-way valve (4). Indoor temperature and humidity can be adjusted independently by aid of the household air conditioner device.