The invention provides a rapid drainage device for foundation reinforcement, and relates to the technical field of foundation drainage, the rapid drainage device comprises a foundation reinforcement plate, a
steel bar frame is arranged in the middle of the foundation reinforcement plate, and a water collecting
pipe is arranged in the
steel bar frame; a mounting ring is sleeved on the water collecting
pipe; positioning frames are arranged on the left side and the right side of the mounting ring and can control the position of a filter cover at the bottom of a water collecting
pipe between foundation reinforcing plates, so that the filter cover is located in accumulated water between the foundation reinforcing plates and is prevented from being immersed into
sediment at the bottoms of the foundation reinforcing plates, and therefore the drainage efficiency of the accumulated water is guaranteed; the problems that when an existing rapid drainage device for foundation reinforcement is used, a water collecting pipe lacks a reasonable positioning structure, so that a water inlet of the water collecting pipe is inserted into
silt, drainage of accumulated water is affected, the water collecting pipe slides to the deep position of a
steel bar net frame and cannot be taken out, and in addition, a large amount of
silt is accumulated on a filter screen, drainage efficiency is affected, and drainage cost is lowered are solved. And an operator needs to regularly disassemble and clean the device, so that the operation is troublesome.