Multifunctional liquid spraying gun

The utility model relates to a multifunctional dispensing gun, comprising a nozzle, an outer casing, an insulated material block, a spillover sleeve pipe, a siphon liquid sleeve pipe, a steam spray pipe, a change-over switch, a water switch and a steam switch. The insulated material block is arranged in a front end of the outer casing, and the front end of the insulated material block is sealed with a taper shaped nozzle. The spillover sleeve pipe is inserted in the insulated material block. The siphon liquid pipe is sleeved in the spillover sleeve pipe. The siphon liquid sleeve pipe is fixedly sealed with the steam spray pipe through a screw thread. The front end of the steam spray pipe is shrunken inwards to a taper. The back end of the steam spray pipe is connected with the steam pipe through a steam connection. The steam pipe is connected with a steam switch; a liquid in channel is arranged on a lower end of the insulated material block. A liquid in hole, a spillover ring cavity and a siphon collar pore a