Multipurpose drilling machine with pre-fixing function

The utility model discloses a multipurpose drilling machine with a pre-fixing function, which relates to the field of drilling machines and comprises a machining table, supporting legs for supporting the machining table are fixedly arranged at the bottom of the machining table, driving rollers are movably arranged at two ends of the machining table, and the two groups of driving rollers are in transmission connection through a transmission belt. The machining table is located in the conveying belt, and filter cloth for filtering metal scraps is fixedly arranged on the outer edge of the conveying belt. When a workpiece is actually machined, the workpiece can be placed at the proper positions of the filter cloth and the surface, then the exhaust fan in the exhaust cavity is started, at the moment, the exhaust fan exhausts air, external airflow enters the exhaust cavity through the exhaust hole in the top of the machining table, negative pressure is formed in the area above the machining table, and then the work