Covering type hydraulic support

The utility model relates to a covering type hydraulic support which comprises a base, a first hydraulic pressure column, a second hydraulic pressure column, a supporting column, a first covering platform, a second covering platform and a third covering platform. The front end of the base is fixedly connected with the first hydraulic pressure column, the rear end of the base is fixedly connected with the second hydraulic pressure column, the tail end of the base is connected with the supporting column in a hinged mode, the supporting column is connected with the first covering platform in a hinged mode, the first covering platform is connected with the second covering platform in a rotatable mode, and the second covering platform is connected with the third covering platform in a rotatable mode. The supporting column is of a telescopic structure, and a hydraulic pressure rod is installed on the bottom surface to push the stretching out and drawing back of the third covering platform. The covering type hydraulic support has the advantages of being good in supporting and protecting performance, high in strength, high in rack moving speed, and safe and reliable. The hydraulic support can be combined with a bending conveyor and a coal mining machine to form a mechanical coal mining device, and the application of the hydraulic support can increase the coal face yield, improve the labor productivity, reduce the production cost, reduce the worker labor and ensure the production safety.