Building design roof cornice waterproof structure

The utility model provides a roof cornice waterproof structure for building design, and relates to the technical field of building construction. The problems that an existing building design roof cornice waterproof structure cannot achieve auxiliary splash-proof collection, water leakage is extremely prone to occurring, efficient cleaning and drainage cannot be achieved, and the overall drainage efficiency is low are solved. Comprising a collecting device; a bottom flow stopping device is connected to the collecting device in a sliding manner; the collecting device is rotationally connected with a buckling splash-proof part; the collection device is fixedly connected with a drainage isolation part; the drainage isolation part is fixedly connected with the accelerated drainage part, the buckling and pressing splash-proof part is arranged, and the bottom flow stopping device is arranged in a matched mode, so that the adaptability can be effectively improved, the overall structure is simple and stable, rainwater