The ornamental design for a watersupplycontainer for air purifier with humidifier, as shown and described.
1. Water supply container for air purifier with humidifier
1.1 is a perspective view of a water supply container for air purifier with humidifier showing our new design;
1.2 is a front elevation view thereof;
1.3 is a rear elevation view thereof;
1.4 is a left-side elevation view thereof;
1.5 is a right-side elevation view thereof;
1.6 is a top plan view thereof;
1.7 is a bottom plan view thereof;
1.8 is a perspective view thereof showing the combined air purifier with humidifier in a use condition; and
1.9 is a front elevation view thereof shown in a use condition.
The broken line showing in 1.8 is for the purpose of illustrating environment of the water supply container for air purifier with humidifier and forms no part of the claimed design.