Tool for grabbing and fishing falling objects in well

The utility model relates to the technical field of well drilling construction, in particular to an in-well fallen object grabbing and fishing tool which comprises a connecting structure, and a grabbing structure is fixedly installed at the bottom of the connecting structure. The grabbing structure comprises a first connecting column fixedly mounted at the bottom of the fixing column, a fixing block is fixedly mounted on one side of the first connecting column, and a first connecting block is fixedly mounted at the bottom of the fixing block; a first connecting column, a fixing block, a first connecting block, a first connecting rod, a first mounting base, a second connecting column, a second mounting base, a second connecting rod, a first hydraulic expansion piece, a third connecting rod and a third mounting base are adopted, adjustment can be conducted according to the in-well diameter, and the device can be suitable for grabbing and fishing of different in-well diameters; and a steel wire knot, a fourth mo