Drilling machine used for oil cylinder support machining and facilitating scrap cleaning

The invention discloses a drilling machine used for oil cylinder support machining and facilitating scrap cleaning. The drilling machine comprises a base, a supporting rod, an operation table, a machine body, a drill bit and a scrap removing device, wherein the supporting rod is vertically arranged on the base, a power output shaft extending downwards is arranged on the machine body, the drill bit is mounted on the power output shaft, and the scrap removing device comprises a fixed bolt, a movable block, a magnet, a shell and an impeller. A mounting hole is formed in the middle of the shell, a first annular inner cavity and a second annular inner cavity are formed in the shell, an annular open hole is formed in the hole wall of the mounting hole, the impeller comprises a supporting ring, a friction ring and a plurality of blades, the power output shaft penetrates through the mounting hole from top to bottom, and the friction ring tightly holds the power output shaft after stretching into the mounting hole thr