Bridge type layer mining device suitable for multi-layer layer mining

The utility model discloses a bridge type layer mining device suitable for multi-layer layer mining. The bridge type layer mining device is designed for achieving layer mining of two or more oil layers without being limited by the yield. The lower portion of an upper connector of the bridge type layer mining device is connected with a lower connector sealed through an axial sealing ring. The outer wall of the middle of the lower connector is provided with a filtering cover with an overflowing hole, the upper portion of the lower connector is provided with a center single flow channel communicated with the overflowing hole of the filtering cover, and a plurality of bridge through holes not communicated with the center single flow channel are evenly distributed inside the barrel wall of the lower connector. The top end of the center single flow channel is connected with a ball seat body. A step inside the ball seat body is provided with a ball seat sealed through the sealing ring, a steel ball centering device and a steel ball are arranged above the ball seat, and the top end of the ball seat body is connected with a steel ball protection cover. The bridge type layer mining device is matched with a packer, and can achieve the layer mining of two or more oil layers without being limited by the yield.