Roof embedded sleeve device

The utility model relates to the technical field of constructional engineering, in particular to a roof embedded sleeve device, which is characterized in that an outer waterstop ring is sleeved on the outer side wall of a sleeve body, an inner waterstop ring with the inner diameter larger than the outer diameter of a roof pipeline is sleeved on the inner side wall of the sleeve body, and a drain hole is arranged on the sleeve body at the joint with the inner waterstop ring. The diversion trench is formed in the bottom of the drainage hole, so that leakage around the sleeve and an inner opening in the later period can be effectively prevented, and the effect of preventing roof leakage is achieved; the part, provided with the inner water stop ring, in the sleeve body does not need to be filled with concrete, so that materials are saved; the wrapping height of the roof waterproof roll is only required to be lower than the lowest position of the drainage groove, so that the cost is reduced; and the roof outlet pi