The invention discloses a kitchen garbage disposer. The kitchen garbage disposer comprises a shell, a rack, a pair of compressing rollers, a pair of gears, a motor, scraping boards, water-receiving troughs, a liquid-collecting bucket, a moving board, a drawer, a heating pipe, an eccentric gear, a linkage board and a tension spring, wherein one pair of the gears are meshed with each other, and arefixed to rotating shafts of one pair of the compressing rollers respectively; a spindle of the motor is fixed to the rotating shaft of one compressing roller; one pair of the scraping boards abut against the compressing rollers; the water-receiving troughs are fixed to the rack, and are located below lower ends of one pair of the compressing rollers; the liquid-collecting bucket is arranged; the moving board can only move back and forth along a sliding rail on the rack; the drawer can penetrate through the shell and a window of the rack, be placed on the moving board, and move along with the moving board, and the drawer can receive kitchen garbage; the heating pipe can dry the kitchen garbage in the drawer; the eccentric gear is fixed to one compressing roller in one pair of the compressing rollers; the bottom of the linkage board is fixed to the moving board, and the top of the linkage board extends to touch the eccentric gear; and one end of the tension spring is fixed to the linkageboard, and the other end of the tension spring is fixed to the rack. The kitchen garbage disposer has the beneficial effects that the structure is simple, and has few parts, and the drying time is shortened.