The invention provides a multi-way plug valve which comprises a valve body, a plug cock and a valve cover, wherein a cavity is formed in the valve body; the plug cock is mounted inside the valve body; the valve cover is positioned at the upper part of the valve body; a sealed cavity is formed by the valve cap and the valve body; the plug cock comprises a tapered part; a tapered surface and a bottom surface are arranged on the outer side of the tapered part; a first passage and a second passage, which are not communicated with each other, are arranged in the tapered part; the first passage penetrates through the tapered part from the direction perpendicular to the axial line of the plug cock, and two outlets I positioned in the tapered surface are formed in the first passage; the second passage slantly penetrates the tapered part; two outlets II respectively positioned in the tapered surface and the bottom surface are formed in the second passage. The multi-way plug valve is novel in structure, can adapt to use in various occasions, and can save considerable equipment and labor costs; through the arrangement of the double-passage plug cock, the switch of every two ways of the multi-way plug valve can be adjusted in the 180-degree rotation angle range.