The invention provides a vertical garbage crushing and spinning device and relates to the field of garbage disposal equipment. The vertical garbage crushing and spinning device comprises a sorting platform, a crushing cavity, a layered tool and a dehydration auger, wherein an outlet in the bottom of the sorting platform leads to the crushing cavity; garbage vertically falls onto the layered tool in the crushing cavity to be crushed; the crushing cavity communicates with an auger tube of the dehydration auger; the dehydration auger penetrates a filter vat to a stir-breaking mechanism; the filter vat communicates with a material cavity of the stir-breaking mechanism, and a rotary stirring plate is fixed in the material cavity; the stir-breaking mechanism comprises the rotary stirring plate driven by a motor; and extruded dry garbage pieces are pushed out of the filter vat by the dehydration auger and crushed by the stir-breaking mechanism. Garbage is disposed step by step to finally achieve the purpose of secondary utilization. As the steps of garbage classification, crushing, spinning and the like are involved, the matching relationship between structures can be utilized for garbage disposal. Particularly, in the conveying and fermenting process of garbage disposal, the structural design is increased, so that garbage adhesion is prevented.