Fast-separating pile head of concrete cast-in-place pile

The utility model relates to a fast-separating pile head of a concrete cast-in-place pile, which comprises a cast-in-place pile steel reinforcement framework and cast-in-place concrete. A separating casing is sleeved on a vertical steel bar of the pile head portion of the cast-in-place pile steel reinforcement framework, and a separating sleeve ring is installed at the bottom of the pile head portion of the cast-in-place pile steel reinforcement framework. The separating sleeve ring is installed on the outer side of the steel reinforcement framework of the pile head portion of the cast-in-place pile steel reinforcement framework, and the external diameter of the separating sleeve ring is the same as the external diameter of the pile head of the cast-in-place pile. The pile head of the cast-in-place pile is simple to construct and low in cost, the concrete of the pile head of the cast-in-place pile can be rapidly removed after use, the time of a removing process of the pile head concrete is shortened, and the