Drainage structures is prevented blockking up by retaining wall

The utility model provides a first drain pipe and second drain pipe that drainage structures is prevented blockking up by retaining wall, it includes is connected with the three -way pipe to and withthe perpendicular permeate tube who is connected of three -way pipe, permeate tube and the wrap -around inside infiltration water of filter retaining wall of crossing of outer wall through the fretwork, first top hoop ware filters the interior water of entering permeate tube with second top hoop ware once more, the toper cap prevents the silt entering permeate tube of outside, the first drain pipeand the second drain pipe that omit the low dip infiltration water of outwards discharging. The utility model overcomes the easy deposit of the inside long -pending water containing of former retaining wall is in drainage pipe, and formation is hardened, and plug the pipe's problem has simple structure, and the cohesive soil body is difficult for hardening in the pipeline, the difficult characteristics of stopping up of d