The invention discloses multifunctional tunnel second lining construction equipment. The multifunctional tunnel second lining construction equipment includes a trolley, a template cleaning oiling loop, a template cleaning oiling track, a template cleaning oiling travelling actuator, a template cleaning oiling track lifting driving mechanism, a cantilever support frame, a spray travelling actuator,a spray frame and a water supply system; the template cleaning oiling track is installed on the cantilever support frame through the template cleaning oiling track lifting driving mechanism, and thecantilever support frame is horizontally and fixedly installed on the tail of the trolley; the spray travelling actuator is installed on the cantilever support frame, the spray frame is fixedly installed on the spray travelling actuator, and the spray travelling actuator can drive the spray frame to move on the cantilever support frame together; and the water supply system is installed on the trolley, a water supply opening of the water supply system is in communication with the spray frame through a water supply flexible pipe, and water is supplied to the spray frame through the water supplysystem. According to the multifunctional tunnel second lining construction equipment, a template of a tunnel second lining template trolley can be cleaned and coated with a releasing agent, and a casted second lining further can be maintained in a sprayed mode.