The utility model relates to a tail pipe device arranged at the bottom of a hole and capable of being conducting tie-back. The tail pipe device is provided with a base, and the base comprises a feeding drill stem, an upper joint, a tail pipe head, a tail pipe string, a float collar, a tail pipe and a float shoe. The lower end of the feeding drill stem is connected with the upper end of the upper joint, and the lower end of the upper joint is connected with the upper end of the tail pipe head through left-hand threads in a left-hand mode. The lower end of the upper joint is of a two-section structure, the left-hand male threads are arranged on the lowest section of the upper joint, and a circular conical surface is arranged on the slightly upper section of the upper joint. The upper end of the tail pipe head is of two-female-thread structure, a slightly larger female thread at the upper end of the tail pipe head is a right-hand thread and a slightly smaller female thread at the upper end of the tail pipe head is a left-hand thread. The lower end of the tail pipe head is connected with the upper end of the tail pipe string, the lower end of the tail pipe string is connected with the upper end of the float collar, a circulation groove is formed in the outer surface of the tail pipe head, the lower end of the float collar is connected with the upper end of the tail pipe and the lower end of the tail pipe is connected with the upper end of the float shoe. The tail pipe device can complete small-gap pipe feeding operation, also enables a sleeve to be tied back to a hole opening, and is simple in structure, large in tail pipe drift diameter, low in use cost and convenient and fast to use.