Double-layer folding pedal structure for crew department of fire engine

The invention relates to a double-layer folding pedal structure for a crew department of a fire engine. The fire engine comprises an under carriage and a doorway and a crew department which are fixedly arranged on the under carriage. The folding pedal structure comprises first and second pedal cantilever supports, an upper pedal, a lower pedal, a pair of adjusting screws and a pair of acting cylinders, wherein the two ends of the upper pedal are fixedly provided with first and second upper pedal pivotal arms, and the first upper pedal pivotal arm is connected with the first pedal cantilever support; the second upper pedal pivotal arm is connected with the second pedal cantilever support, and the two ends of the lower pedal are fixedly provided with first and second lower pedal pivotal arms; the adjusting screws are connected between the first and second upper pedal pivotal arms and the first and second lower pedal pivotal arms, and the acting cylinders are connected with one side of each of the first and second pedal cantilever supports; and first and second limit blocks are fixedly arranged at one side of each of the first and second pedal cantilever supports. The double-layer folding pedal structure has the advantages that the upper and lower pedals can not be damaged when the fire engine is driven; the operating strength of firefighters is reduced, and the time is saved; and the security is embodied.