The invention discloses an integrated arm type down-the-hole drilling machine, which comprises a traveling chassis, a machine frame (3), a drill arm (14), a drill tower (9), a drilling system, a power system (4), a hydraulic system (5), a control system (19) and a cab (7), wherein, the traveling chassis which adopts a pedrail floating type traveling chassis (6) is arranged below the machine frame (3), an air compressor (2) and a dust removing system (1) are arranged on the machine frame (3), a drill arm lifting cylinder (17) and a drill arm deflecting cylinder (16) are installed between the drill arm (14) and the machine frame (3), and a drill tower lifting cylinder (15) and a drill tower deflecting cylinder (13) are arranged between the drill arm (14) and the drill tower (9). A compensation cylinder (11) is arranged between a sliding carriage (12) of the drilling system and the drill tower (9). The invention provides the integrated arm type down-the-hole drilling machine which has the advantages that the structure is compact, the maneuverability is good, the integrated arm type down-the-hole drilling machine can meet the requirements of multiple direction drilling, the operation range is wide, the energy consumption is low, the efficiency is high, the control is convenient and flexible, the maintenance is convenient, and the operation cost is low.