Compact light top coal caving hydraulic support

The utility model is suitable for the technical field of mining hydraulic supports, and provides a compact light top coal caving hydraulic support which comprises a base and a ceiling. Traction stand columns are fixedly connected to the side of the base. Pin shaft holes are symmetrically formed in the side surfaces of the traction upright; the traction stand column is in sliding fit with a traction assembly. The traction assembly comprises a C-shaped sliding plate in sliding fit with the traction stand column. Traction heads are arranged on the side surfaces of the C-shaped sliding plates; a plurality of positioning holes are symmetrically formed in two opposite side surfaces of the C-shaped sliding plate; and a pin shaft is inserted between the two pin shaft holes and the positioning hole. According to the device, after a traction head moves to a specified traction height along a traction stand column, two pin shafts are inserted into pin shaft holes in the traction stand column and are inserted out of corre