Fin type low-temperature gas heat exchange condensation water collecting device

The utility model discloses a fin type low-temperature gas heat exchange condensation water collecting device which comprises a heat exchange device and a water collecting device, the heat exchange device comprises at least two heat exchange boxes, the heat exchange boxes are arranged on the two sides, and each heat exchange box is divided into an upper part and a lower part; the upper half part of the heat exchange box comprises at least two rows of square fin type heat exchangers; the lower half part of the heat exchanger comprises a circular fin type heat exchanger; the upper part and the lower part of the heat exchange box are fixedly connected; a fan is arranged at the upper part of the heat exchange box; wherein the lower end of the heat exchange box is connected with a flue gas induced pipe, the flue gas induced pipe is connected with an alkali liquor storage tank and an ultrasonic atomizer, the ultrasonic atomizer is connected with a water collecting device through a water collecting pipe, the water c