The utility model provides a novel improve planer -type milling machine of structure, including support column, upper plate, transverse guide, the transmission case, the motor, the control box, the workstation, the guard shield, chip removal device and expansion plate, the upper plate setting on the upper portion of support column, transverse guide set up in the middle of support column anterior, the transmission case fix the upper portion at transverse guide, the motor fix the upper portion at the transmission case, the workstation setting on the upper portion of support column, the guard shield setting on the upper portion of workstation, the beneficial effects of the utility model are that: the utility model discloses a folded sheet, cover plate, chip groove and swiveling wheel and transverse guide set up the folding function who realizes the guard shield to conveniently receiving and dispatching the guard shield, coordinating the activity of folded sheet, going on of the work of being convenient for through the rotation of swiveling wheel, drives the discharge of iron fillings, and makes things convenient for the rotation of swiveling wheel, thereby accelerates chip removal speed, makes the lathe bear the weight of the dynamic height, reduces the processing cost of planer -type milling machine.