Gas treatment device

The invention relates to a gas treatment device which comprises a liquid conveying pipeline (1), a liquid storage pool (2) and a gas conveying pipeline (3), the liquid conveying pipeline (1) is used for conveying liquid and comprises a liquid outlet (1a), the liquid storage pool (2) is arranged below the liquid outlet (1a) so as to receive the liquid flowing out of the liquid outlet (1a), and the gas conveying pipeline (3) is used for conveying gas to be treated. A gas outlet (3a) of the gas conveying pipeline (3) is formed below the liquid outlet (1a), so that gas flowing out of the gas outlet (3a) is in contact with liquid flowing out of the liquid outlet (1a) in the rising process. The flowing direction of the gas is opposite to the flowing direction of the liquid, and substances capable of being dissolved in the liquid in the gas can be absorbed by the liquid when the gas and the liquid meet each other in the flowing process, so that the gas to be treated is purified, the peculiar smell of the gas to be t