The utility model provides a thermal -insulated curtain quick replacement of rock wool packaging machine and automatic unload mechanism, including T type groove, thermal -insulated curtain, an installation rack and a fixed rack, the metal block, the electro -magnet, T type slider, the apparatus further comprises a rotating shaft, support body and guide roll, T type groove is offered under the fixing base on the terminal surface, thermal -insulated curtain is fixed under the mounting bracket on the terminal surface, the metal block is installed on T type sliding block rear end face, the electro-magnet assembly is on T type inslot rear end face, T type slider is fixed on the mounting bracket up end, and the assembly of T type slider is at T type inslot, this design has realized the integralerection and dismantlement function of thermal -insulated curtain, the support body sets up in support left end position, and the support body is connected with the support through the pivot, the guide roll sets up in the support body, this design has realized the automatic discharge function, the labor intensity of an operator member is reduced, the utility model discloses rational in infrastructure, multiple functional, the practicality is strong, and stability is good, and the reliability is high.