Supporting structure of chimney inner tube

The utility model discloses a supporting structure of chimney inner tube, chimney include the urceolus and hang at least one inner tube in the urceolus. The utility model discloses a be located urceolus and relative two first trusss that set up, two first trusss all include first upper chord and first chord member, and first upper chord supports in the inner wall of urceolus, is equipped with at least two between two first upper chords and suspends the roof beam in midair, suspend in midair roof beam and first upper chord enclose close form and the periphery complex of inner tube at least one suspend the framework in midair. Be equipped with two at least spinal branch supporting beam between two first chord members, supporting beam and first chord member enclose close form with inner tube periphery complex, with the support framework of suspending the framework one -to -one in midair. The inner tube hoists and be equipped with a plurality of thong roof beams on suspend the framework in midair, supporting the