Aeration tower of intermittent gas generator

The utility model discloses a coal gas wash tower for batch type coal gasification industrial production. A water inlet of the gas wash tower is provided with an inflow automatic valve. The inflow automatic valve is controlled by the industrial computer centralized and decentralized control system using for coal gasification industrial production, which can realize that the inflow automatic valve of the gas wash tower will be closed during the blowing step of the gas generating circle; and when the blowing is over, the inflow automatic valve will be started. Under the condition that the cost is basically not increased, the utility model realizes a batch type gas washing of the gas wash tower, which can reduce the running cost of one coal gas producer by sixteen thousand, shortens the scale of sewage treating, and reduces the investment of sewage treating.