Portable pipe cutter

A portable pipe cutter comprising:

• a disc knife set including a disc knife;
• a roller set including a roller base and two rotatable rollers disposed in front of the roller base;
• a driving assembly including a fixed-rotating shaft lever and a rotating operation component connected to one end of the fixed-rotating shaft lever;
• a main body including a pipe receiving space in a middle thereof and an opening connected with the pipe receiving space;
• wherein the disc knife set and the roller set are disposed with a knife-edge of the disc knife partially protruding into the pipe receiving space;
• wherein the fixed-rotating shaft lever pierces through a side wall of the main body and connects with the roller base;
• and wherein the rotating operation component is disposed on an exterior of the main body;
• and
• a conversion module connecting the driving assembly, the main body, and the roller set;
• wherein a rotation of the rotating operation component is converted into a linear movement of the roller set;
• wherein the disc knife set further includes a knife axle piercing through a center of the disc knife;
• wherein inside the main body is disposed a knife axle guiding channel, therein both ends of the knife axle are disposed;
• wherein the knife axle guiding channel is an arc-shaped path;
• wherein two arc-shaped guide plates are fixed inside the main body one above and one below;
• and
• wherein an inner side wall of the main body and the guide plates form the knife axle guiding channel.