NOVELTY - A rotary continuous pyrolysis carbonization furnace comprises hearth, carbonization furnace, and rotary furnace composed of cylinder body and inner heating tube (16) which is orderly provided with pre-carbonization section and carbonization section located in cylinder body of rotary furnace in hearth.    USE - Rotary continuous pyrolysis carbonization furnace.    ADVANTAGE - The rotary continuous pyrolysis carbonization furnace improves working efficiency of rotary furnace.    DETAILED DESCRIPTION - A rotary continuous pyrolysis carbonization furnace comprises hearth, carbonization furnace, and rotary furnace composed of cylinder body and inner heating tube (16) which is orderly provided with pre-carbonization section and carbonization section located in cylinder body of rotary furnace in hearth. One end of inner heating tube installed in pre-carbonization section and carbonization section of cylinder body is fixed on wall of cylinder body at one side. The other end of inner heating tube is fixed on wall of cylinder of rotary furnace at other side. The high-temperature hot steam which enters to one part of hearth by flue is charged into one end of inner heating tube. The other end of inner heating tube is connected with afterheat transmission pipeline. The left part of high-temperature hot steam after entering hearth by flue enters carbonization section of cylinder to realize carbonization for raw material in carbonization section. The hot wood gas of raw material generated during carbonization section and pre-carbonization section is lead out by fan after passing pre-carbonization section. The raw material coming in from star-type feeder is subjected to pyrolysis and carbonization by carbonization section. The carbonized material is discharged by carbonized material outlet.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the rotary continuous pyrolysis carbonization furnace.    Spiral discharging device (4)    Oxygen burning room (7)    Inner heating tube (16)