Self-sinking type steel open caisson supporting structure for soft soil area

The utility model discloses a self-sinking steel open caisson supporting structure for a soft soil area, which comprises an underground ground, a first concrete layer and a second concrete layer, a template I and a template II are respectively arranged on the outer sides of the first concrete layer and the second concrete layer, and a plurality of uniformly distributed supporting rods are arrangedat the upper end of the underground ground. Through a protection plate, fan blades, a discharging groove and a motor, the fan blades can be rotated to leak out the discharging groove when soil is transported, and the soil is transported out of the discharging groove; when a worker excavates soil, the motor is controlled to drive the fan blades to rotate to block the discharging groove, a sealed environment can be prevented from being formed, the construction progress is prevented from being affected by outside weather, and meanwhile constructors are prevented from being hit by objects fallingin the air. And a better