Slurry flow guide device and flow guide system for water cast-in-place pile construction

The utility model discloses a slurry flow guide device and a flow guide system for construction of an overwater cast-in-place pile, a cast-in-place pile casing is arranged before the construction of the overwater cast-in-place pile, and the slurry flow guide device comprises a butt joint part and a guide-out part; the butt joint part is connected to the lower end of the guiding-out part, and a slurry outlet is formed in the side face of the guiding-out part. Mud is guided out through the guiding-out part, the situation that mud overflows to pollute water is reduced, the problem that mud circulation and recycling difficulty in water cast-in-place pile construction is large is solved, water environment pollution caused by mud is reduced, the mud recycling rate is increased, mud overflow is reduced, and the overall work efficiency is improved. The slurry flow guiding device can be recycled, the construction standardization level is improved, the installation efficiency of the slurry circulation flow guiding syst