The invention discloses a turbocharging double-fuel engine. The turbocharging double-fuel engine is characterized by comprising a first driving system, a second driving system, a third driving system and a fourth driving system; the first driving system, the second driving system, the third driving system and the fourth driving system are totally the same in structure; the first driving system comprises a gas storage cylinder in a natural gas storage device, a gas transmission pipe, a single-dimensional internal combustion engine, a tenth motor, an axial flow gas compressor and a first lever braking device; the tenth motor is connected with the axial flow gas compressor; and the axial flow gas compressor is driven by the tenth motor.