The invention belongs to the technical field of pile drivers, and specifically relates to a pile driver for engineering, including a support block, a mud guard, a brush, a first telescopic rod, a sleeve, a third telescopic spring, a sliding rod, a sleeve frame, an impact hammer, a clamping groove, a rotating plate, a first telescopic spring, a round plate, a first jack, a shaft rod, a mounting box, a motor, a square column, a threaded drill bit, a rotating disc, a second telescopic rod, a mud scraping plate, a second jack, a base, a second supporting spring, a mounting groove, a supporting frame, a cover plate, a hook, a fixing bolt and a bail. According to the pile driver for engineering, pile driving can be better carried out, a wood pile can be better prevented from being obliquely driven into soil, and therefore the pile driving uprightness is greatly improved, and meanwhile the pile driving efficiency is improved. According to pile driver, dust and soil can be better protected, environmental pollution caused by the dust is avoided, the dust is prevented from entering the lung of a worker to cause infection, and meanwhile soil drilled by a threaded drill rod is prevented from falling into a drilled hole.