A mini hopper loader is provided to reduce costs of an injection molding system by performing an air take-in process and a dust collecting process independently from each other. A mini hopper loader includes a loader casing(10), an inner casing, a filter assembly, a fan housing, and a fan motor. The loader casing includes a cylinder part having an upper opening, a conical part formed integrally with a lower portion of the cylinder part, and a material inlet pipe arranged at one side of the cylinder part. The inner casing is fitted into the loader casing, and has a material inlet path formed between an outer surface of the inner casing and an inner surface of the loader casing. The filter assembly is arranged in the inner casing, and has an air inlet path formed between an outer surface of the filter assembly and the inner surface of the inner casing. The fan housing is arranged in the cylinder part of the filter assembly through the upper opening of the loader casing, and has a top and a bottom with vent holes and an inside with an intake fan. The fan motor is mounted on the fan housing, and rotates the intake fan.
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