The invention relates to a pipeline cleaning device. The cleaning device comprises a main
body frame, a traveling mechanism, a rotary cutter head
assembly and a garbage recycling device, wherein the traveling mechanism, the rotary cutter head
assembly and the garbage recycling device are all arranged on the main
body frame; and in particular, the pipeline cleaning device also comprises a cooling device arranged on the main
body frame, and
cold air sprayed from the cooling device can make deposited stains cool, brittle and easy to remove, so that the
cutting efficiency is obviously improved andthe
cutting effect is good. When the cleaning device is applied to a
permafrost region, the arrangement of the cooling device can also store cold energy for a local stratum by cooling a pipeline. Further, the rotary cutter head
assembly of the cleaning device is characterized in that a plurality of rigid
cutting blades are uniformly distributed in the circumferential direction and are driven to rotate by an epicyclic
gear train structure, so that the structure is reasonably arranged, the cutting rigidity is guaranteed, and the cutting efficiency and the cutting effect are greatly improved; and the travelling mechanism generates
friction force by virtue of magnetic force, so that the loss degree of related parts is reduced while the overall complexity is reduced, and the travelling mechanism has the barrier-crossing capability when making contact with small obstacles.