Metal scrap removing device for lathe

The invention discloses a metal scrap removing device for a lathe. The metal scrap removing device comprises a box body, two sets of quick connectors, a connecting pipe and a shell; the interior of the box is divided into a mounting bin and a collecting bin through a partition plate; the collecting bin is provided with a filter screen in an exhaust hole formed in the end face of the box body; a drawer is slidably arranged in the collecting bin; a high-pressure fan is arranged in the mounting bin; the lower end face of the shell is provided with an opening; a first rolling assembly is arranged on the bottom face of the shell; a second rolling assembly is arranged on the side end face of the shell; a magnetic adsorption assembly used for magnetically adsorbing iron-containing metal scraps is arranged in the shell, and a plurality of sets of magnetic telescopic assemblies used for driving the magnetic adsorption assembly to move towards or away from the opening are arranged in the shell; the connecting pipe comprises a protective pipe and an air pipe; the protective pipe sleeves the outer side of the air pipe, and the two ends of the protective pipe are connected with the outer end face of the box body and the outer end face of the shell through two sets of quick connectors correspondingly; and the air pipe and the high-pressure fan communicate with the shell and the collecting bin. The device is easy and convenient to operate, and iron metal scraps remaining on a precision machine tool can be collected conveniently.