Laser cutting machine

The utility model relates to a laser cutting machine, which is formed by a host workbench device and an adjacent cradle device and controlled by a control system. The heights of upper and lower cradles on the cradle platform are lifted via a cradle synchronization elevating system and the two cradles are alternately fed to the workbench for the operation via a workbench transmission mechanism. When the cutting work of workpieces is performed on one of the cradles, the loading and unloading work can be performed by the other one of the cradles at the same time. Therefore, the production efficiency is greatly improved and the safety of operators is also ensured. The high-speed operation of the optical fiber laser can be performed on a machine tool and the positioning and cutting work can be quickly and accurately realized via longitudinal, transverse and vertical locating mechanisms controlled by the control system. The laser cutting machine also has the advantages of high precision and safe and reliable action. Meanwhile, flue dusts generated during the cutting process can be effectively processed by adopting a reasonable wind path design, which is environment-friendly and safe.