Post-cast strip anti-seepage flow guide drainage structure

The utility model relates to a post-cast strip anti-seepage flow guide drainage structure which comprises a post-cast strip concrete bottom plate, floor concrete and a water stop steel plate. A water stop steel plate is arranged in the post-cast strip concrete bottom plate, and then concrete on the two sides of the post-cast strip is intercepted through a steel wire mesh to form a formwork; a water filtering tank is arranged above the post-cast strip concrete bottom plate; a PVC drainage pipe is arranged in the water filtering tank; the PVC drainage pipe is cut into two halves from the middle and is reversely buckled in the water filtering groove, so that a PVC pipe drainage channel is formed; terrace concrete is poured on the post-cast strip concrete bottom plate, and when the terrace concrete reaches the upper surface of the PVC drainage pipe, geotechnical cloth is arranged on the terrace concrete and used for isolating the PVC pipe drainage channel from the terrace concrete, so that an anti-seepage flow gu