All-in-one machine for sweeping, returning to field and fertilizing high-solid-content regenerated fertilizer and method of all-in-one machine

The invention relates to a high-solid-content regenerated fertilizer sweeping, returning and fertilizing all-in-one machine and a method thereof, the high-solid-content regenerated fertilizer sweeping, returning and fertilizing all-in-one machine comprises a walking chassis, a cab is arranged at the front upper part of the walking chassis, and an engine is mounted at the middle lower part of the walking chassis; the vacuum sewage suction pump is mounted on the walking chassis, is positioned behind the cab, and is used for sucking and cleaning the high-solid regenerated fertilizer; the regenerated fertilizer storage tank is mounted at the rear upper part of the walking chassis, and the regenerated fertilizer storage tank is connected with the vacuum sewage suction pump; a fertilizer inlet valve is mounted on the regenerated fertilizer storage tank and is connected with a fertilizer inlet suction pipe; and the ditching and fertilizing device is hung at the rear end of the walking chassis, is connected with the