The utility model provides a kind of communication
relay system suitable for non-
coal underground mine stope networking needs, comprising: multi-
network convergence route, power supply circuit and main network, wherein: the power supply circuit is extended along the extension direction of
recovery entry and is arranged, at least one multi-
network convergence route is arranged every first preset distance on the power supply circuit, and each the multi-
network convergence route is electrically connected with the power supply circuit;The main network is arranged outside the entrance of the
recovery entry, and the main network is connected with the multi-network convergence route closest to the entrance of the
recovery entry by network cable or
optical fiber;The multi-network convergence route is used for the reception and transmission of
wireless signal inside the recovery entry. By using power supply circuit, multiple multi-network convergence routes are deployed in recovery entry, and
optical fiber is not needed to be laid to realize
data transmission between network base stations, while realizing network coverage inside the recovery entry, the deployment difficulty and deployment cost are reduced.