1. An X-ray imaging apparatus, comprising: an X-ray imager comprising an X-ray beam generator for emitting an X-ray beam, an X-ray beam detector for detecting the X-ray beam to obtain an X-ray image of an object, and a body unit to which the X-ray beam generator and X-ray beam detector are mounted; and a scanner being arranged on the X-ray imager to obtain an exterior image of the object.