Laser cutting device

A laser cutting device, comprising:

• a main body configured to emit a laser beam, a cutting point being formed at a position where the laser beam intersects a material to be cut;
• a gas blow pipe, of which a gas blow mouth is configured to blow out a gas flow that is inclined to the laser beam, the gas flow capable of aiming at the cutting point;
• a gas suction pipe, of which a gas suction mouth is located downstream of a flowing direction of the gas flow, relative to the cutting point;
• wherein the gas blow pipe and the gas suction pipe are attached respectively to the main body by an adjustment mechanism, such that positions of the gas blow pipe and the gas suction pipe are adjustable to adapt to change of a laser beam cutting route;
• wherein an annular groove is formed at a periphery of the main body;
• and
• wherein the adjustment mechanism comprises:
• a first slider in a slide fit with the annular groove, the gas blow pipe being connected to the first slider;
• and a second slider in a slide fit with the annular groove, the gas suction pipe being connected to the second slider.