Suspension type data center cooling device

The invention relates to the technical field of data centers, and provides a suspension type data center cooling device which comprises a plurality of overhead ventilation layers, a plurality of suspension fixing pieces and a plurality of server cooling mechanisms. The multiple overhead ventilation layers are arranged in the vertical direction, and overhead stand columns are arranged between the overhead ventilation layers. The overhead ventilation layer is composed of a plurality of fully-paved channel areas and a plurality of ventilation areas. The ventilation area penetrates through the upper and lower sides of the overhead ventilation layer; the server cooling mechanism is filled with cooling liquid, and the data server is installed in the cooling liquid. The plurality of suspension fixing pieces are arranged on the bottom surface of the upper overhead ventilation layer, and the plurality of server cooling mechanisms are detachably arranged on the suspension fixing pieces respectively; the server cooling