Roadway supporting device and method for thick-layer loose coal and rock mass difficult to anchor

The invention provides a roadway supporting device and method for a thick-layer loose coal and rock mass difficult to anchor. The roadway supporting device comprises an anchor rod cable rod body, an anchoring force enhancing assembly and a fixing assembly, wherein the anchor rod cable rod body is used for being inserted into a drill hole formed in a coal and rock mass; the anchoring force enhancing assembly is fixedly connected with one end of the anchor rod cable rod body, and the anchoring force enhancing assembly is used for increasing the contact area of the anchor rod cable rod body and an anchoring agent loaded into the drill hole; the fixing assembly is connected with the other end of the anchor rod cable rod body, and the fixing assembly is used for fixing the anchor rod cable rod body to a coal rock mass. The device is advantaged in that stirring uniformity of the anchoring agent is improved, the double-component mixing degree of the anchoring agent is improved to the maximum extent, the anchoring fo