Filtration recovery system for exhaust heat energy

The utility model relates to a heat energy recovery system. A filtration recovery system for exhaust heat energy comprises an exhaust air hose; a heat energy recovery hole is formed in the side wall of the exhaust air hose; an airflow channel switching system is arranged in the exhaust air hose; the airflow channel switching system comprises an airflow reversing plate; the upper part of the airflow reversing plate is rotatably connected with the inner wall of the exhaust air hose through a revolving shaft; the area of the airflow reversing plate is not less than that of the heat energy recovery hole, and the airflow reversing plate can seal the heat energy recovery hole. According to the filtration recovery system for the exhaust heat energy, disclosed by the utility model, the heat energy recovery hole is formed, so that hot air can be conveyed to a specific position through the heat energy recovery hole, and is reutilized.