Energy recovery type energy-saving and environment-friendly waste gas treatment spray tower

The invention discloses an energy recovery type energy-saving and environment-friendly waste gas treatment spray tower which comprises a spray tower main body, an environment-friendly heat exchange mechanism and an impurity collection box, a gas inlet pipe is connected to the lower bottom of the spray tower main body and is used for injecting waste gas; the environment-friendly heat exchange mechanism is arranged on one side of the spray tower body, communicates with the gas inlet pipe and is used for recycling heat in waste gas, the environment-friendly heat exchange mechanism comprises a heat exchange box, a gas conveying pipe is connected to the heat exchange box, and a waste gas purification mechanism in the heat exchange box is used for purifying harmful substances in the waste gas and also used for pretreating the waste gas. And a central plate and a film are arranged in the heat exchange box and are connected with each other. By arranging corresponding mechanisms, heat energy in waste gas can be recycl