Embedded sleeve for reserving cast-in-place concrete floor pipeline hole

The invention discloses an embedded sleeve for reserving a reserved pipeline hole of a cast-in-place concrete floor, and relates to the technical field of constructional engineering. Comprising a fixing rod, a first fixing cover, a round pipe and a second fixing cover, a baffle is horizontally and fixedly connected to the inner wall of the bottom of the round pipe and is perpendicular to the axis of the round pipe, the baffle is an annular plate, the second fixing cover is pressed on the baffle, the first fixing cover covers the top of the round pipe, and the second fixing cover covers the top of the round pipe. The fixing rod sequentially penetrates through the first fixing cover and the second fixing cover from top to bottom and then is in threaded connection with a template, external threads are arranged on the upper portion and the lower portion of the fixing rod, a first nut is connected with the fixing rod in a screwed mode and tightly presses the first fixing cover, and a second nut is connected with t