Crop-livestock circulation system

A crop-livestock circulation system, comprising:

• a planting greenhouse;
• a fish pond;
• a fermentation treatment chamber;
• a sewage collection unit;
• a conveying unit;
• a spraying device;
• and
• a livestock greenhouse;
• wherein a rear portion of the livestock greenhouse is provided with a drinking trough;
• the livestock greenhouse comprises a bottom plate;
• a first side of the livestock greenhouse is provided with a scraper;
• a portion of the bottom plate close to a second side of the livestock greenhouse is provided with a collection port, wherein the second side of the livestock greenhouse is opposite to the first side of the livestock greenhouse;
• a bottom of the collection port is provided with a manure collection trough;
• and the manure collection trough is connected to the fermentation treatment chamber;
• a sewage discharge port of the fish pond is connected to the sewage collection unit;
• and the sewage collection unit is connected to the fermentation treatment chamber;
• and
• the fermentation treatment chamber is connected to the conveying unit;
• the conveying unit is connected to the spraying device;
• and the spraying device is provided in the planting greenhouse.