Convenient-to-regulate water guide tube supporting device for combustion boiler

The invention discloses a convenient-to-regulate water guide tube supporting device for a combustion boiler. The convenient-to-regulate water guide tube supporting device comprises a boiler main body,wherein a water guide tube is movably mounted on the inner part of the boiler main body; a supporting rod is fixedly mounted between inner walls of the two sides of the boiler main body; the supporting rod is positioned below the water guide tube; the inner part of the supporting rod is movably connected with two threaded rods in a sleeving mode; the bottoms of the threaded rods are fixedly equipped with driven wheels; a drive gear is connected between the two driven wheels in an engaged mode; the bottom of the drive wheel is fixedly equipped with a rotary rod; the bottom of the rotary rod isfixedly equipped with a handle; and the surfaces of the two threaded rods are in threaded and sleeve connection with slide plates. The handle is rotated, so that a rotary rod and the drive wheel rotate to drive the driven whe