Solar energy-based rainwater collecting and fallen leaf crushing fermenting device

The invention discloses a solar energy-based rainwater collecting and fallen leaf crushing fermenting device. The solar energy-based rainwater collecting and fallen leaf crushing fermenting device comprises a fermentation chamber, a steel wire gauze, an extruding system, a water spray roller system, a cylinder cover system, a rainwater collecting system, a ventilating system, and a solar energy supply system; an extruding plate, the steel wire gauze, and the water spray roller system are used for realizing secondary extruding and smashing of materials, and primary spraying of materials; material smashing is beneficial for full fermentation, and is capable of improving fertilizer quality; in fermentation, a gas inlet extruding plate and a gas outlet extruding plate are pushed forward, gas is introduced into the fermentation chamber via a gap, the steel wire gauze and the water spray roller system are used for increasing gas flow turbulence, sufficiency oxygen is provided by gas, and heat energy is discharged t