The invention relates to a perpendicularly rotating car coupler and a road-rail vehicle. The perpendicularly rotating car coupler comprises an installation tube, a car coupler
assembly, a nut, a slide block, a spiral
elevator, a coupler and a motor, wherein a bar-type hole is formed in the side wall of the installation tube; a screw rod of the spiral
elevator and the installation tube are coaxially arranged and mounted in the installation tube in a rotatable manner; the nut is in threaded connection onto the screw rod; the screw rod is inserted into a through hole formed in the slide block; the slide block is connected with the nut; a first installation base is also arranged on the slide block; the car coupler
assembly comprises a first car coupler, a second car coupler, a second installation base, a support seat, a sleeve arranged on the support seat, a support spring arranged in the sleeve, and a
pulley arranged on the top end of the support spring; the first car coupler is connected to one side of the second car coupler; the first car coupler and the second car coupler press against the
pulley so as to rotate relative to the second installation base; the first installation base and the second installation base are detachably connected. The height adjustment efficiency of the car coupler is improved, the support strength of the car coupler is enhanced, and the service life of the car coupler is prolonged.