Flue gas filtering device

The utility model belongs to the technical field of the chimney flue gas is handled, concretely relates to flue gas filtering device, including the smoke suction hood who is located chimney outlet flue department, the first pipe of discharging fume, a pond for reducing flue -gas temperature and to gas cleaning, the second pipe of discharging fume, a filter and air exhauster for being directed at the flue gas carries out the secondary and purifies, smoke suction hood advances mouth sealing connection with the first pipe of discharging fume, first discharge fume tub outlet flue and pond advance mouth sealing connection, the outlet flue and the second in pond are discharged fume and are managed mouth sealing connection, second discharge fume tub outlet flue and filter one end sealing connection, the filter other end sealing connection afterbody pipe of discharging fume, the afterbody is discharged fume a tub department and is equipped with the air exhauster. The utility model discloses simple structure, low in p