Exhaust blade device

The utility model discloses an exhaust blade device which comprises two exhaust blades and a synchronizing mechanism, wherein rotating shafts of the two exhaust blades are adjacent, and the synchronizing mechanism is used for controlling the two exhaust blades to synchronously rotate. As the two exhaust blades are controlled by the synchronizing mechanism to synchronously rotate, the defect that the exhaust blades cannot be synchronously opened and closed due to gravity is overcome, the exhaust blade device can work at any angle in the space, and the exhaust blades can be synchronously opened and closed, therefore the fact that the two exhaust blades can smoothly open and close the air outlet of an air outlet adapter is ensured. On the premise that the running of a machine is not influenced, sundries are effectively prevented from entering the machine through the air outlet, and the safe running of the machine is ensured.