Aeration device

The aeration device comprises an aeration pipe, two rows of aeration holes are symmetrically formed in the aeration pipe, an inverted-V-shaped support is arranged in the aeration pipe, mud blocking mechanisms matched with the aeration holes are arranged on the inverted-V-shaped support, sealing flanges are arranged at the two ends of the aeration pipe, an air inlet pipe is connected to the middle of the aeration pipe, and the ends of the inverted-V-shaped support are connected with the sealing flanges. The aeration device has the beneficial effects that the mud blocking mechanism is arranged on the inverted V-shaped bracket, the mud blocking mechanism is propped open by utilizing air pressure in an air supply state so as to realize aeration, and the mud blocking mechanism blocks the aeration holes in a non-ventilation state so as to prevent sludge from blocking the aeration holes, so that the problem that silt in sewage is deposited to block the aeration holes is effectively solved. 本实用新型公开了一种曝气装置，包括曝气管，曝气管上对