Hydraulic support for realizing placing top coal and filling operation

The utility model discloses a hydraulic support for realizing placing top coal and filling operation, and discloses support filling equipment for exploiting three-lower-one-upper pressing coal. The hydraulic support comprises a base and a top beam which are hinged through four stand columns, wherein the rear end of the top beam is hinged with a tail beam which can change the angle through a tail beam jack, the lower part of the tail beam is hinged with a baffle which is folded with the tail beam, and the inner side of the baffle is provided with a plugging plate and a plugging plate jack. The hydraulic support provided by the utility model can realize the support of the top of a goaf, meanwhile, the top coal layer is exploited, and the top beam, the tail beam and the plugging plate are utilized as a channel for placing the top coal; when the hydraulic support needs to perform filling, the tail beam can form the support of the top surface of the goaf, and can form a box plate role together with the baffle and