Electromagnetic pushing unlocking device of fireproof door push rod lock

The utility model relates to an electromagnetic push unlocking device of a fireproof door push rod lock. The electromagnetic push unlocking device comprises a shell; the spring bolt is rotationally arranged at one end of the shell, and the spring bolt can rotate until part of the spring bolt is exposed out of the shell or retract into the shell; one part of the shifting plate is rotationally connected with the shell, one end of the shifting plate abuts against the spring bolt, and the other end of the shifting plate is a pushing end; the push rod is in sliding connection with the shell so that the push rod can slide in the direction close to the shell, and the position, close to the push end, of the push rod extends in the direction of the shell to form a push part; and the electromagnetic telescopic assembly is arranged on the pushing end, the electromagnetic telescopic assembly is provided with a sliding pressing block which can be electromagnetically controlled to stretch out or retract, and the sliding pr