Annular blowing integrated flue gas hot blast stove

The utility model relates to flue gas hot blast stoves, in particular to an annular blowing integrated flue gas hot blast stove comprising a base provided with a smoke tank (2) and a shell provided with a cold air port (7) and a hot air port (6). A hearth (1) and a plurality of smoke tubes (5) are mounted in the shell, and the smoke outlet of the hearth (1) is communicated with the smoke inlet of the smoke tank (2). The flue gas hot blast stove further comprises an annular smoke collecting chamber (10), the smoke tank (2) is arranged in the inner circle of the annular smoke collecting chamber (10), and the upper end of the annular smoke collecting chamber (10) is connected to a chimney (3). One ends of the smoke tubes (5) are connected to the smoke outlet of the smoke tank (2) in a rigid sealed manner, and the other end is connected to the annular smoke collecting chamber (10) in the rigid sealed manner; in other words, the smoke tubes (5) are in U shapes, and the sealed end of the smoke tubes (5) are suspend