Liquid medicine applying device

The utility model discloses a liquid medicine applying device which comprises a liquid medicine storage cylinder and a liquid outlet cylinder, the liquid medicine storage cylinder is located above the liquid outlet cylinder and detachably connected with the liquid outlet cylinder, the liquid outlet cylinder is made of transparent materials, and volume scales are arranged on the liquid outlet cylinder. A plurality of liquid outlet holes are formed in one half area of the bottom of the liquid outlet cylinder, a permeable membrane is pasted and covered on the lower end face of the area, a smearing layer is fixedly arranged on the lower end face of the other half area of the bottom of the liquid outlet cylinder, and an adjusting mechanism for controlling the outflow amount of the liquid medicine is arranged between the liquid medicine storage cylinder and the liquid outlet cylinder. The constant-temperature infusion apparatus has the advantages that due to the fact that the adjusting mechanism capable of adjustin