Novel steel chimney double-inner-cylinder supporting slide way structure

The utility model relates to the field of chimneys, in particular to a novel steel chimney double-inner-cylinder supporting slide way structure which comprises an outer cylinder. A horizontal supporting beam is fixedly mounted in the outer cylinder and comprises a transverse horizontal supporting beam and a longitudinal horizontal supporting beam; the length of the longitudinal horizontal supporting beam is matched with the diameter of the inner wall of the outer cylinder, the inner space of the outer cylinder is equally divided, the inner cylinders are arranged on the two sides of the longitudinal horizontal supporting beam, and inner cylinder supporting lugs are fixedly installed on the outer walls of the inner cylinders; according to the utility model, the inner cylinder can slide up and down outside the U-shaped groove formed by the limiting slideway and the limiting baffle through the inner cylinder support lugs, the U-shaped groove only transmits horizontal force, the horizontal force is transmitted to