The invention discloses a novel vertical all-in-one machine for dry and wet feed smashing and mixing. To prevent a feeding port from being jammed by wet feed (fermented feed) and a feeding stirring shaft from being locked, pre-stirring shaft components with support are designed for performing added feed pre-stirring, so that the dry and wet feed and additive can smoothly enter on side of a threaded stirring shaft through a feeding stirring shaft; the feed is vertically conveyed upwards by the threaded stirring shaft, is thrown out when conveyed to the end of the threaded stirring shaft, slides downwards along the inner wall of a cylinder and a cone part of a shell, flows to the bottom, and is lifted upwards and thrown by the vertical threaded stirring shaft again; and the circulation is repeated, and evenly mixed feed can be acquired. A set of the pre-stirring shaft components with support is arranged in a main feeding chute; a workbench with adjustable height and convenience in operation and a safe screen preventing a feeding woven bag from entering the pre-stirring shaft are added; and the application range of vertical mixing machines is expanded.