The invention discloses an intelligent waste gas treatment device mainly including a gas intake pipe, a waste gas treatment room, a spray device, waste gas absorption cotton, a waste gas concentrationsensor, a gas pressure sensor, a controller, a fan, a deodorization box, a deodorization box bracket and a gas exhaust port. One side of the waste gas treatment room is connected with the gas intakepipe, and the other side of the waste gas treatment room is provided with the spray device; the bottom of the waste gas treatment room is provided with the waste gas absorption cotton; the inner wallof the top of the waste gas treatment room is provided with the waste gas concentration sensor; the lower end of the waste gas concentration sensor is provided with the gas pressure sensor; the controller is arranged on one side of the waste gas treatment room and is located above the gas intake pipe; the waste gas concentration sensor and the gas pressure sensor are both electrically connected with the controller; the center of the left surface of the deodorization box is connected with the fan, and the right surface is provided with the gas exhaust port. The deodorization box bracket is arranged below the deodorization box. By the way, the intelligent waste gas treatment device can fully mix waste gas and water vapor, cools down and recovers the production waste gas, and not only is environmentally friendly but also can improve the production efficiency.