Fully mechanized coal mining face frame rear beam tube burying device

The utility model provides a fully mechanized coal mining face frame rear beam tube burying device which comprises a plurality of main tubes, the main tubes are laid in a goaf, three-way connectors are connected between the main tubes through connecting flanges, each three-way connector comprises an outer end branch tube, the middle of each outer end branch tube is fixedly filled with stemming filler, and the stemming filler is connected with the main tubes through connecting flanges. The top end of the outer end branch pipe is sleeved with an outer cover protection pipe, and a beam pipe is inserted into the main pipe. According to the utility model, only one bundle tube needs to be laid; the beam tube is protected during monitoring, the beam tube cannot be damaged when a top plate falls off, so that data detection is safe and reliable, and the embedded inter-frame beam tube can be effectively prevented from being damaged by extrusion and pulled out during the working face lapping advancing period after the d