Gravel compaction combined hammer for dynamic compaction

The utility model discloses a gravel compaction combined hammer for dynamic compaction, which comprises a basic rammer and a compaction rammer, the basic rammer is convex, the bottom of the basic rammer is a cylindrical basic rammer body, the middle part of the top end of the basic rammer body is integrally provided with a vertically extending hammer neck, and the center position of the top of the hammer neck is in threaded connection with a hoisting screw rod which is coaxially arranged with the hammer neck; the compaction rammer comprises a connecting hammer body and compaction hammer heads which are integrally connected, the connecting hammer body is fixedly arranged at the bottom end of the foundation hammer body, the compaction hammer heads are evenly distributed at the bottom end of the connecting hammer body, the upper portions of the compaction hammer heads are cylindrical hammer bodies, and the tail ends of the cylindrical hammer bodies are hemispherical protrusions. A plurality of vertically-through