Smoke tower integrated spraying type heat exchanger

The utility model relates to the technical field of flue gas waste heat recovery and purification treatment, and particularly discloses a flue gas tower integrated spraying type heat exchanger which comprises a spraying tower, a chimney fixedly connected to the top end of the spraying tower and a supporting frame used for supporting the spraying tower and the chimney, the top end of the spraying tower is communicated with the bottom end of the chimney, and a flue gas inlet is formed in one side of the bottom end of the spraying tower. One side of the spray tower is provided with a spray water inlet, the other side of the spray tower is provided with a spray water outlet, a liquid collecting box is also arranged in the spray tower, one side of the spray tower close to the top end is also sequentially provided with three stages of spray layer inlets from top to bottom, water spray devices communicated with the spray layer inlets are fixedly connected in the spray tower, and a demisting layer is also arranged in