Guide plate type dry powder fire extinguishing device

A flow guide plate type dry powder fire extinguishing device comprises a transverse cylindrical tank body, a gas production agent assembly is arranged in the tank body, the tail end of a thermosensitive line is connected with a trigger assembly, a plurality of air outlet holes are formed in the side wall of a barrel body, the left end of the tank body is connected with a powder spraying connector, the tail end of the powder spraying connector is connected with a powder spraying elbow, and a powder spraying opening is formed in the tail end of the powder spraying elbow. And a guide plate is arranged in the tank body and obliquely and downwards extends to the middle bottom of the tank body from the lower edge of the powder spraying interface. When the device is not started, the interior of the tank body does not have pressure, the device is a maintenance-free product, the labor intensity of regular maintenance of maintainers is reduced, the residual rate of superfine dry powder in the tank body is greatly reduc