Waste heat recovery heat exchanger

The utility model discloses a waste heat recovery heat exchanger which comprises a box body, the inner surface of the box body is fixedly connected with a partition plate, a plurality of cleaning devices are arranged on the inner wall of the bottom of the box body, the cleaning devices are distributed in an array mode, the upper surface of the partition plate is fixedly connected with a heat exchange pipe, the outer surface of the heat exchange pipe is fixedly connected with fins, and the fins are fixedly connected with the partition plate. And the rear surface of the box body is fixedly connected with a waste gas inflow pipe, and the interior of the waste gas inflow pipe is fixedly connected with a valve. By designing the cleaning device, the problems of poor heat exchange effect, high cleaning speed and no influence on use of the device due to accumulation of particulate matters in the heat exchange tube are solved, the temperature of waste gas and a medium after heat exchange is monitored by designing a te