Modification emulsifier

The utility model relates to a modification emulsifier. An emulsifier (1) is connected with an asphalt pipe (2); an asphalt check valve (3) is arranged on the asphalt pipe (2); an asphalt thermal-insulation sleeve (4) is connected with the asphalt pipe (2); an asphalt pressure meter (5) is arranged on the asphalt thermal-insulation sleeve (4); an emulsion pipe (6) is arranged in the asphalt pipe (2); the emulsion pipe (6) is connected with an asphalt speed regulating pump (9); an emulsion check valve (7) and an emulsion pressure meter (8) are arranged on the emulsion pipe (6); the length in the emulsifier (1) of the emulsion pipe (6) is 10 to 50 millimeters; the distance between the bent part of the emulsion pipe (6) and the entrance of the emulsifier (1) is 100 to 300 millimeters; and the diameter of the emulsion pipe (6) is 1/5 to 1/3 of that of the asphalt pipe (2). The modification emulsifier is simple in structure and high in emulsion performance and effectively solves the problem that styrene-butadiene-